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In-depth cleaning instead of superficial cleaning. With the original air and room cleaning technology by DELPHIN! The power within the water!

Allergy-free area due to perfect cleanliness!

Water vortices create negative ions which are stimulating. The DELPHIN binds the dust in the air with water by creating a water vortex. This creates a clean spell in your home!

A clean spell and clean air.

We picked the name DELPHIN because its element is water. The DELPHIN is powerful, elegant, intelligent and a friend of man. The power within the water!

Powerful and intelligent

In-depth cleaning instead of superficial cleaning. With the original air and room cleaning technology by DELPHIN! The power within the water!

Breathe freely at last!

In-depth cleaning instead of superficial cleaning. With the original air and room cleaning technology by DELPHIN! The power within the water!

Allergy-free area due to perfect cleanliness!

Water vortices create negative ions which are stimulating. The DELPHIN binds the dust in the air with water by creating a water vortex. This creates a clean spell in your home!

A clean spell and clean air.

We picked the name DELPHIN because its element is water. The DELPHIN is powerful, elegant, intelligent and a friend of man. The power within the water!

Powerful and intelligent

In-depth cleaning instead of superficial cleaning. With the original air and room cleaning technology by DELPHIN! The power within the water!

Breathe freely at last!

Briefkopf des Chemisch Pharmazeutischen Laboratoriums in Isny

 

PROAIR GmbH
Leutkircher Straße 24
z. H. Herrn Grassinger

88316 Isny

Examination no. 1740 from 6th December 1994

Assessment of effect of air washer DELPHIN

Definition of tasks:

- Evaluation of the cleaning performance of the air washer regarding the reduced concentration of mould spores/yeasts in the room air.

- Evaluation of the cleaning performance when used to clean mattresses.

The examination will be carried out at the home of the family Milz from Bottentann, community of Friesenhofen. The home is on an agricultural property. The bedroom faces South on the first floor.

Furniture: wood floor, carpet, double bed, cupboard, chest of drawers;

Date of sampling: 6th December 1994, 9.00 - 11.00 o'clock in the morning

Execution:

First measurements:

To determine the mould spores/yeasts, the collector for airborne germs RCS Plus from the company Biotest is used in combination with indicator strips no. HS 941200 for moulds/yeasts.

Measurement conditions: - air temperature in the room: 16.5 °C
- rel. humidity 75 %
- air pressure 1028 mbars
- sucked in volume of air is 250 litres each,
- suction capacity is 50 litres per minute.
- The strips are incubated for a minimum of 3 days at a temperature of 30 °C.

Sampling plan:
A) Determination of moulds/yeasts concentration in the air by collector of airborne germs
B) measurement for comparison with outside air
C) measurement of room air after plumping up bedding
D) measurement of room air after cleaning with air washer: 2 m³ per minute, duration of 15 minutes


Second measurements:

To determine the cleaning performance with regard to the cleaning of the mattress, dust and water samples of the air washer are taken with the aid of a filter cloth.

Sampling plan:
A) suction test of filter cloth (3 cloths after another) of a mattress covered in a bed sheet (Metzeler Rubex-Carat, approx. 8 weeks old)
B) clean filter cloth for comparison
C) suction test on filter cloth of a new mattress without bed sheet
D1) water sampling after cleaning of mattress (new mattress) - about 2 min.
D2) water sampling after cleaning of mattress - innerspring mattress about 17 years old - approx. 2 minutes
E) suction test of old mattress on filter cloth
F) suction test of carpet on filter cloth - after complete cleaning of new mattress with DELPHIN (surface approx. 0.5 m², processing time about 10 min.)
G) suction test on filter cloth
H) suction test in water


Dust samples are examined for moulds/yeasts, mites as well as residual faecal matter of house dust mites and water samples are examined for moulds and yeasts, respectively.

 

Laboratory tests:
The determination of moulds/yeasts in water samples will be executed in accordance with § 35 German Food and Commodities Act (LMBG).

A quarter of the dusters is used respectively for the proof of house dust mites. The quantity of dust found there is removed, suspended in a little bit of NaCI (0.9 %), magnified a 100-fold and examined under a microscope.

One half of the dusters are examined for allergens (faecal particles of house dust mites). The semiquantitative Acarex test is used for this. This test is availabe in pharmacies. (A quantitative methode does not exist yet.)

The determination of moulds and yeasts on dusters is executed following § 35 LMBG. A quarter of the dusters is used here, inserted into a suitable culture medium (peptone water) and then the moulds and yeasts are quantitaviely determined after preparing a dilution series. The same was done to the water samples.

Results:

First measurements:

Measurement no.

Moulds and Yeasts (CFU) per m³ of air

A

32

B

36

C

44

D

8


Second measurements:

 

Moulds/Yeasts (CFU)

Measurement

per filter cloth

per 2 litres of washing water

A

10800/110000

---

B

0

0

C

7200/110000

---

D1

---

50000/1000000

D2

---

30000/2000000

E

5400/90000

---

F

14400/1800000

---

G

180/3600

---

H

---

8000/4000


House dust mites and allergens

Apart from the acquisition of the moulds and yeasts, the filter cloths were also examined directly for the existence of mites or rather mite allergens.
However, during the microscopic examination, 2 individuals could be spotted solely in suction test A. Apart from that, no house dust mites could be perceived on the filter cloths.
Mite allergens were supposed to be proven in the dust samples of the filter cloths with the help of the Acarex test.
However, in the samples A, C and E no mite allergens could be proven.

 

Summary:

The capability of the air washer to remove for the human organism straining airborne contents, in this case moulds and yeasts, is supposed to be examined with the aid of the first measurements.

The result of the measurements clearly shows a plunge in the number of mould spores and yeast cells in the air of the room after starting up the air washer. While the quantity of CFU (Colony-Forming Unit) rose from 32 to 44 after plumping up the bed, a distinctive reduction to 8 CFU per m³ with the aid of the air washer (operating time about 15 min.) could be achieved.


An executed measurement for comparison that is supposed to take the strain on the outside air by moulds and yeasts into account, shows that the strain on the indoor air is comparable to the strain on outside air. This corresponds with bibliographical references that expect a low concentration of mould spores in the outside air for the months of November until April. The concentration is on average at 40 CFU per m³.

This means that thanks to the air washer DELPHIN, even after a short period of application, not only the raised quantity of CFU of moulds and yeasts is reduced, which is caused by making the bed, but also the quantitiy of CFU is lowered beneath the germ load of the outside air.
Lit.: K. Senkspiel, H. Ohgke, Beurteilung der Schimmelpilz-Sporenkonzentration in der Innenraumluft und ihre gesundheitlichen Auswirkungen, Gesundheits-Ingenieur 113 (1992) Heft 1

 

The capability of the air washer, for cleaning of mattresses, is supposed to be examined with the aid of the second measurements.

As the test results on page 5 show, a distinctive strain on the filter cloths by mould spores and yeast cells can be documented for the measurements A,C and E, even after a short suction time (less than a minute). For mould spores the number lies at 0.5 to 1.0 * 104 CFU and for yeast cells at 0.9 to 1.1 * 105 regarding the diameter of the filter cloth.


During the examination of the water, a suction test of 2 minutes provides CFU numbers for both mattresses from 3 to 5 + 104 CFU for moulds and 1 to 2 * 105 CFU for yeast per 2 litres of wash water.

After a thorough cleaning of the mattresses by the air washer DELPHIN (surface about 0.5 m³, processing time 10 minutes) and a subsequent sampling of the same surface under comparable conditions, the results are significantly lower numbers of CFU of moulds and yeasts per 2 litres wash water in suction tests on filter cloth and in water, respectively. In numbers that is 180 or 3600 CFU on filter cloth and 8000 or 4000 CFU in the water.

The results of the measurements clearly show a significant reduction of the number of mould spores and yeast cells in suction samples after a thorough cleaning of the mattress. Therefore, the results also show the aptitude of the air washer to reduce mould spores and yeast cells, which great amounts of can be found in mattresses, partly by the power of ten.

However, with the aid of the described test execution (second measurements), it was possible to attest the reduction of numbers of house dust mites or rather the reduction of mite allergens when the air washer is used to clean mattresses. Not only should the approach to the test be modified here correspondingly but also the quantitative determination.

At this point I want to point out that both test series were designed to look only for mould spores and yeasts, however, not for bacteria. As the tests have shown, the air washer seems to be equally applicable to bacteria. Nonetheless, this would have to be examined in a separate test series, since the measurements and laboratory tests carried out here were selectively examined for moulds and yeasts. This led to an obstraction in the development of bacterias and therefore, no sound statement about them can be made.


CHEMISCH-PHARMAZEUTISCHES
LABORATORIUM ISNY/ALLGÄU
Unterschrift unter der Prüfung des Delphin zur Luftreinigung durch das Chemisch Pharmazeutische Laboratorium in Isny

Briefkopf des Chemisch Pharmazeutischen Laboratoriums in Isny

 

PROAIR GmbH
Leutkircher Straße 24
z. H. Herrn Grassinger

88316 Isny

Examination no. 1740 from 6th December 1994

Assessment of effect of air washer DELPHIN

Definition of tasks:

- Evaluation of the cleaning performance of the air washer regarding the reduced concentration of mould spores/yeasts in the room air.

- Evaluation of the cleaning performance when used to clean mattresses.

The examination will be carried out at the home of the family Milz from Bottentann, community of Friesenhofen. The home is on an agricultural property. The bedroom faces South on the first floor.

Furniture: wood floor, carpet, double bed, cupboard, chest of drawers;

Date of sampling: 6th December 1994, 9.00 - 11.00 o'clock in the morning

Execution:

First measurements:

To determine the mould spores/yeasts, the collector for airborne germs RCS Plus from the company Biotest is used in combination with indicator strips no. HS 941200 for moulds/yeasts.

Measurement conditions: - air temperature in the room: 16.5 °C
- rel. humidity 75 %
- air pressure 1028 mbars
- sucked in volume of air is 250 litres each,
- suction capacity is 50 litres per minute.
- The strips are incubated for a minimum of 3 days at a temperature of 30 °C.

Sampling plan:
A) Determination of moulds/yeasts concentration in the air by collector of airborne germs
B) measurement for comparison with outside air
C) measurement of room air after plumping up bedding
D) measurement of room air after cleaning with air washer: 2 m³ per minute, duration of 15 minutes


Second measurements:

To determine the cleaning performance with regard to the cleaning of the mattress, dust and water samples of the air washer are taken with the aid of a filter cloth.

Sampling plan:
A) suction test of filter cloth (3 cloths after another) of a mattress covered in a bed sheet (Metzeler Rubex-Carat, approx. 8 weeks old)
B) clean filter cloth for comparison
C) suction test on filter cloth of a new mattress without bed sheet
D1) water sampling after cleaning of mattress (new mattress) - about 2 min.
D2) water sampling after cleaning of mattress - innerspring mattress about 17 years old - approx. 2 minutes
E) suction test of old mattress on filter cloth
F) suction test of carpet on filter cloth - after complete cleaning of new mattress with DELPHIN (surface approx. 0.5 m², processing time about 10 min.)
G) suction test on filter cloth
H) suction test in water


Dust samples are examined for moulds/yeasts, mites as well as residual faecal matter of house dust mites and water samples are examined for moulds and yeasts, respectively.

 

Laboratory tests:
The determination of moulds/yeasts in water samples will be executed in accordance with § 35 German Food and Commodities Act (LMBG).

A quarter of the dusters is used respectively for the proof of house dust mites. The quantity of dust found there is removed, suspended in a little bit of NaCI (0.9 %), magnified a 100-fold and examined under a microscope.

One half of the dusters are examined for allergens (faecal particles of house dust mites). The semiquantitative Acarex test is used for this. This test is availabe in pharmacies. (A quantitative methode does not exist yet.)

The determination of moulds and yeasts on dusters is executed following § 35 LMBG. A quarter of the dusters is used here, inserted into a suitable culture medium (peptone water) and then the moulds and yeasts are quantitaviely determined after preparing a dilution series. The same was done to the water samples.

Results:

First measurements:

Measurement no.

Moulds and Yeasts (CFU) per m³ of air

A

32

B

36

C

44

D

8


Second measurements:

 

Moulds/Yeasts (CFU)

Measurement

per filter cloth

per 2 litres of washing water

A

10800/110000

---

B

0

0

C

7200/110000

---

D1

---

50000/1000000

D2

---

30000/2000000

E

5400/90000

---

F

14400/1800000

---

G

180/3600

---

H

---

8000/4000


House dust mites and allergens

Apart from the acquisition of the moulds and yeasts, the filter cloths were also examined directly for the existence of mites or rather mite allergens.
However, during the microscopic examination, 2 individuals could be spotted solely in suction test A. Apart from that, no house dust mites could be perceived on the filter cloths.
Mite allergens were supposed to be proven in the dust samples of the filter cloths with the help of the Acarex test.
However, in the samples A, C and E no mite allergens could be proven.

 

Summary:

The capability of the air washer to remove for the human organism straining airborne contents, in this case moulds and yeasts, is supposed to be examined with the aid of the first measurements.

The result of the measurements clearly shows a plunge in the number of mould spores and yeast cells in the air of the room after starting up the air washer. While the quantity of CFU (Colony-Forming Unit) rose from 32 to 44 after plumping up the bed, a distinctive reduction to 8 CFU per m³ with the aid of the air washer (operating time about 15 min.) could be achieved.


An executed measurement for comparison that is supposed to take the strain on the outside air by moulds and yeasts into account, shows that the strain on the indoor air is comparable to the strain on outside air. This corresponds with bibliographical references that expect a low concentration of mould spores in the outside air for the months of November until April. The concentration is on average at 40 CFU per m³.

This means that thanks to the air washer DELPHIN, even after a short period of application, not only the raised quantity of CFU of moulds and yeasts is reduced, which is caused by making the bed, but also the quantitiy of CFU is lowered beneath the germ load of the outside air.
Lit.: K. Senkspiel, H. Ohgke, Beurteilung der Schimmelpilz-Sporenkonzentration in der Innenraumluft und ihre gesundheitlichen Auswirkungen, Gesundheits-Ingenieur 113 (1992) Heft 1

 

The capability of the air washer, for cleaning of mattresses, is supposed to be examined with the aid of the second measurements.

As the test results on page 5 show, a distinctive strain on the filter cloths by mould spores and yeast cells can be documented for the measurements A,C and E, even after a short suction time (less than a minute). For mould spores the number lies at 0.5 to 1.0 * 104 CFU and for yeast cells at 0.9 to 1.1 * 105 regarding the diameter of the filter cloth.


During the examination of the water, a suction test of 2 minutes provides CFU numbers for both mattresses from 3 to 5 + 104 CFU for moulds and 1 to 2 * 105 CFU for yeast per 2 litres of wash water.

After a thorough cleaning of the mattresses by the air washer DELPHIN (surface about 0.5 m³, processing time 10 minutes) and a subsequent sampling of the same surface under comparable conditions, the results are significantly lower numbers of CFU of moulds and yeasts per 2 litres wash water in suction tests on filter cloth and in water, respectively. In numbers that is 180 or 3600 CFU on filter cloth and 8000 or 4000 CFU in the water.

The results of the measurements clearly show a significant reduction of the number of mould spores and yeast cells in suction samples after a thorough cleaning of the mattress. Therefore, the results also show the aptitude of the air washer to reduce mould spores and yeast cells, which great amounts of can be found in mattresses, partly by the power of ten.

However, with the aid of the described test execution (second measurements), it was possible to attest the reduction of numbers of house dust mites or rather the reduction of mite allergens when the air washer is used to clean mattresses. Not only should the approach to the test be modified here correspondingly but also the quantitative determination.

At this point I want to point out that both test series were designed to look only for mould spores and yeasts, however, not for bacteria. As the tests have shown, the air washer seems to be equally applicable to bacteria. Nonetheless, this would have to be examined in a separate test series, since the measurements and laboratory tests carried out here were selectively examined for moulds and yeasts. This led to an obstraction in the development of bacterias and therefore, no sound statement about them can be made.


CHEMISCH-PHARMAZEUTISCHES
LABORATORIUM ISNY/ALLGÄU
Unterschrift unter der Prüfung des Delphin zur Luftreinigung durch das Chemisch Pharmazeutische Laboratorium in Isny

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