How do you choose formaldehyde removal service?

As citizens’ understanding and attention to indoor air quality continue to deepen, more and more people are arranging formaldehyde removal services after renovation. However, the quality of formaldehyde removal services on the market varies greatly, and every company claims that its service delivers the best results. As a consumer, how should one choose?

We hope that through this website, consumers can understand the factors that should be considered when selecting a formaldehyde removal service, enabling the public to make wise choices.

Is More Expensive Always Better?

There is a wide variety of formaldehyde removal materials, but the basic service process is essentially the same:

1. Pre-service air testing;

2. Application of formaldehyde removal materials by spraying;

3. Post-service testing;

4. Submission of a work report (including by our company, Allerfree HK).

Therefore, the biggest differences between the formaldehyde removal services provided by different companies lie in two factors: the construction materials used and the quality of the service personnel.

Some formaldehyde removal companies on the market charge high fees and offer different packages, but the best package is always only one — and of course, customers usually choose the most expensive one. It is also very possible that they are simply providing the same service as other companies, just with different packaging methods. The original intention of our company (AllerfreeHK) is to provide the highest-quality service at the most reasonable price. Therefore, we only offer one best service — no need to choose left or right — and our charges are absolutely reasonable. ​

Formaldehyde Removal Materials Common formaldehyde removal materials:

1. CT Catalyst (Electro-catalyst);

2. Air Catalyst;

3. Chitosan (formaldehyde adsorption);

4. Photocatalyst (visible light); Nano-silver. ​ Although there are a large number of different materials on the market, even when the materials are the same, some formaldehyde removal companies will rename them to make them appear unique. In reality, the mainstream construction materials for formaldehyde removal are nothing more than:

   1. CT Catalyst (Electro-catalyst);

   2. Air Catalyst;

   3. Chitosan (formaldehyde adsorption);

   4. Photocatalyst (visible light); and

   5. Nano-silver.

      
      

      Each material has its own advantages and disadvantages. For example, some materials are particularly effective on baked paint, while others are very strong on carpets. Construction needs to select the best material according to different emission sources. (Our company Allerfree’s formaldehyde removal service selects the most suitable different formaldehyde removal materials within the same construction unit according to actual needs.) ​

Construction and Testing Equipment One of the important reasons why customers choose professional formaldehyde removal company services rather than DIY is that they do not have professional instruments to test the air quality inside the unit. These professional instruments cost HKD 20,000–30,000 each, and ordinary households or companies would not purchase them. Some customers consider buying detectors from Taobao for a few hundred dollars, but the data measured are unreliable, effectively wasting those few hundred dollars.

Therefore, choosing a company that uses professional testing instruments is also an important consideration.

(Allerfree uses professional testing instruments to measure air quality both before and after construction, and will also submit a work report to the customer after completion.)

Understanding Formaldehyde and TVOC Safety Indicators

Understanding the indicators for formaldehyde and TVOC allows customers to assess the effectiveness of the formaldehyde removal service and thereby make better choices.

Formaldehyde safety indicator HCHO: 0.08 PPM (parts per million)

Total Volatile Organic Compounds TVOC: 0.6 PPM

Data from the Hong Kong Environmental Protection Department(香港環境保護署)

Scope of Construction The scope of construction is proportional to the service price. But if it is only a custom-made large wardrobe, is it suitable to do a formaldehyde removal service?

Because of labor and time costs, formaldehyde removal services have a basic charge, generally around HKD 1,500 to HKD 2,000.

For example: if you spend HKD 2,000 on formaldehyde removal for a HKD 4,000 wardrobe, the cost-effectiveness is quite low. In this day and age, customers can consider DIY formaldehyde removal or use formaldehyde removal sprays, but when choosing, they must pay attention to whether the product is safe and reliable.