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Chemical Name: CHARGE TRANSFER TYPE CATALYST (Short Form: CT Catalyst)
(JPO Patent No.: 3514702 2004.1.23 , IPD Patent Ref: HK1116125)

CT catalyst particles are as fine as 300nm diameter in average. By using CT
Spray Coating Technique, CT catalyst particles are evenly distributed on the surface of furniture, walls and every drawer as well. It allows the CT catalyst particles to fully perform in oxidation and reduction so as to eliminate the VOCs inside the flat rapidly.

CT catalyst is recognized as a powerful media to decompose VOCs that are carcinogenic (such as formaldehyde), disinfect, anit-mold, deodorization and self-cleaning function. It has been imported from Japan with honorable awards and received great appreciation from the local government. It was being awarded with 2008 Yellow Ribbon Medal from Japanese Tenno, 2005 Thing Structure Japan Grand-Prix Prize for an Excellent Work from Japan Ministry of Economy, 2005 appreciated by Minister of Education, Culture, Sports, Science & Technology and 2004 29th Japan Invention Rewards.

CT Catalyst undergoes oxidation/reduction by using catalyst and material containing charge transfer type catalyst

Oxidation and reduction
ACID –COOH + O2 (+ e) → CO 2 + H2O
ALKALINE –(OH) + H+ → 2H2O (+ e)

There are various standards of IAQ among regions/ districts. Roughly speaking, the standard of TVOC level is not more than 0.8mg/m3 or 1ppm. In the following table section 1, you may find various IAQ index for reference.

A CT catalyst ability experiment has been conducted in a renovated flat. There is no doubt that an outstanding result has been recorded. In section 2, it shows that CT catalyst is able to decompose TVOC more than 90% within just 72 hours. In the meantime, it is inspired that the concentration of formaldehyde has reduced 99.4%. This result is equivalent to natural decomposition for 3-10 years. CT catalyst is therefore significantly proofed to be a strong VOCs killer.

(VOC)

China IAQ
Standard

HKIAQ
Standard

US
Occupational
Safety Limit

Odor
Threshold Limit

IARC
Classification

0 hour

24 hours

72 hours

Final
Reduction
Rate

Formaldehyde
甲醛

0.10mg/m3

(excellent）
0.03mg/m3
(good）
0.10 mg/m3

0.37mg/m3

1.04mg/m3

1; Carcinogenic
to humans

9 mg/m3

1.66 mg/m3

<0.05 mg/m3

99.4%

Benzene
苯

0.11mg/m3

0.016 mg/m3

1.60 mg/m3

39.00mg/m3

1; Carcinogenic
to humans

9 mg/m3

2.28 mg/m3

0.013 mg/m3

96.6%

Toluene
甲苯

0.20mg/m3

1.092 mg/m3

188.00 mg/m3

11.11mg/m3

3; Not
Carcinogenic
to humans

9 mg/m3

3.7 mg/m3

0.069 mg/m3

92.3%

Xylene
二甲苯

0.20mg/m3

1.447 mg/m3

434.00 mg/m3

48.50mg/m3

3; Not
Carcinogenic
to humans

9 mg/m3

1.73 mg/m3

0.069 mg/m3

92.3%

Tetrachloroethylene
四氯乙烯

0.250 mg/m3

170.00 mg/m3

186.00mg/m3

2A; Probable
Carcinogen
to humans

9 mg/m3

3.58 mg/m3

2.84 mg/m3

68.4%

Styrene
苯乙烯

85.20 mg/m3

1.36mg/m3

2B; Probable
Carcinogen
to humans

9 mg/m3

1.11 mg/m3

0.621 mg/m3

93.1%

Dioxane
二氧六環

90.00 mg/m3

86.40mg/m3

2B; Probable
Carcinogen
to humans

9 mg/m3

2.12 mg/m3

0.810 mg/m3

91.0%

Chloroform
三氯甲烷

0.163 mg/m3

49.00 mg/m3

416.50mg/m3

2B; Probable
Carcinogen
to humans

9 mg/m3

5.34 mg/m3

0.567 mg/m3

93.7%

Ethylbenzene
乙苯

1.447 mg/m3

435.00 mg/m3

10.00mg/m3

2B; Probable
Carcinogen
to humans

9 mg/m3

2.538 mg/m3

0.945 mg/m3

89.5%

Japan Food Research Laboratories has tested CT catalyst’s anti-bacteria ability in a 24 hours sample testing. It conclusively confirms that CT catalyst is able to control the growth of Staphylococcus Aureus, MRSA and Escherichia Coli within a day, in short, bacteria will be eliminated. A study states that CT Catalyst affects the charge balance inside bacterial cells through charge transfer, making the environment impossible for bacterial growth.。

Regarding to the anti-mold performance of CT catalyst, there is a controlled experiment carried out. The report indicated that CT catalyst is able to stop the growth of mold, as the testing sample with CT catalyst remind mold-free. It is because CT catalyst is strong in water repellency that separates moisture from the surface.