Move-in, renovation and home furnishing often trigger formaldehyde to remain in the household. Formaldehyde is one of the Volatile Organic Compounds (VOC) which impacts our health. There are several formaldehyde removal products, if you prefer DIY, you may consider formaldehyde removal spray, whereas if you are not a DIY person, formaldehyde removal air purifier and formaldehyde /VOC removal services can also help you alleviate worries led by formaldehyde.
This article addressed the impacts of formaldehyde on human and introduced various methods on how to remove formaldehyde and VOC in Hong Kong, including the photocatalysis solution. We also compared different formaldehyde removal methods, products and prices etc.
What is Formaldehyde?
Formaldehyde (HCHO) is one of the most common Volatile Organic Compounds (VOC) that is colourless, transparent and pungent. It is usually found in building materials for home, such as wooden furniture, carpets, wallpaper, floors, etc., and glue.
Formaldehyde has severe impacts on human bodies. Long-term exposure to an environment with high formaldehyde concentration can cause the following problems:
- Cancer, including nasopharyngeal cancer, sinus cancer and leukaemia
- Respiratory diseases , such as bronchopneumonia and pulmonary edema
- Stimulate skin inflammation and rash
- Miscarriage and teratogenesis may occur during pregnancy
The problems caused by formaldehyde are numerous. The World Health Organization has listed formaldehyde as a first-level carcinogen. Therefore, the removal of formaldehyde is prominent after move-in, renovation and new furnishings.
Formaldehyde Removal Method 1: Formaldehyde Removal Spray
If you prefer to remove formaldehyde without the help of others, or just simply want to remove the formaldehyde on new furniture, getting a formaldehyde removal spray should be perfect for you. In principle, the method is the same as that of the formaldehyde removal services, but you will have to spray it yourself.
Similarly, in addition to formaldehyde removal spray, there are two other options: photocatalyst and non-photocatalyst, catering to different needs. However, kindly note that you must follow the instructions when using to avoid unevenness or leaving marks on the surface of the object or wall.
Formaldehyde Removal Spray Comparison
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| Raze Wood Anti Bacteria and Odors Spray 250ml |
EcoPro Air Catalyst VOCs Removal Spray 300ml |
HOMEGREEN Natual Chitin Antibacterial Spray |
EcoPro Japan Formaldehyde Removal Spray Kit Set |
Envirosafe Water Cleaning Series – Nature HCHO Cleaning Agent |
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| Brand | Raze Technologies Limited (Raze) |
Honour Envirosafe Tech Limited |
Green Manner Limited | Honour Envirosafe Tech Limited |
Honour Envirosafe Tech Limited |
| Results | Decompose Formaldehyde, TVOC, Antibacterial, Eliminate Odour | Decompose Formaldehyde, TVOC, Antibacterial, Eliminate Odour, Mildew Resistant | Decompose free formaldehyde/VOC, purify, Antibacterial, Eliminate Odour | Decompose Formaldehyde, TVOC, Antibacterial, Eliminate Odour, Mildew Resistant | Decompose Formaldehyde, TVOC, Antibacterial, Eliminate Odour, Mildew Resistant |
| Volume | 250ml | 300ml | 300ml | Chitin: 300ml Air-catalyst: 300ml |
1L |
| Price | HK$123(15% OFF) (Original Price: HK$145) |
HK$398 | HK$312(5% OFF) (Original Price: HK$330) |
HK$760(5% OFF) |
HK$650 |
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Purchase Formaldehyde Removal Spray Now
Formaldehyde Removal Method 2: Natural Substances
Maintaining good indoor ventilation and having plants like chrysanthemums, tigertail orchids and ivy etc. are natural methods to remove formaldehyde but they may not be suitable for some environment. Good ventilation requires opening doors and window however, there are fewer windows in office and plants take a really long time to purify formaldehyde completely so the risks may still exist.
Formaldehyde Removal Method 3: Air Purifier
When talking about formaldehyde removal products, many people will think of air purifier. Most air purifiers in the market remove formaldehyde, and they mainly rely on three components:
Negative ions: The air purifier releases negative ions into the air, which can be combined with formaldehyde, bacteria, viruses or PM2.5 to make them settle, and negative ions will even degrade formaldehyde into carbon dioxide and water
Active carbon: A filter made of activated carbon can absorb formaldehyde during the process of pumping air and filter out odour
Photocatalyst: The meaning of photocatalyst refers to the catalysts that use light energy to carry out catalytic reactions, while in formaldehyde removal, titanium dioxide (TiO2) will be used. To put it simple, the filter screen containing titanium dioxide in the air purifier absorbs the passing formaldehyde and uses light to produce catalytic effect, thereby converting the formaldehyde into carbon dioxide or water. In addition to formaldehyde, photocatalysts also have very strong bactericidal and virus-killing capabilities.
Formaldehyde Removal Air Purifier Comparison
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| PPP High Performance Air Purifier PPP-400-01 |
Smarteach Smart Silent Multi-Function UV HEPA Air Purifier |
EcoPro VOC-250 Photocatalyst Air Purifier |
EcoPro WP500 Water Filter Technology Air Purifier |
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| Suitable for | 380 – 550 sq. feet | 200 sq. feet | 250 – 300 sq. feet | 500 sq. feet |
| Filter | Activated Carbon Filter, Negative Ion |
Activated Carbon Filter, Negative Ion | Photocatalyst, Negative Ion, Ultraviolet Light, HEPA Filter, Activated Carbon |
HCHO Cleaning Agent, Formaldehyde Decomposition Ball, Ceramic Ball, Activated Carbon |
| Price | HK$4,930(15% OFF) (Original Price: HK$5,800) |
HK$1,498 | HK$2,660(30% OFF) (Original Price: HK$3,800) |
HK$3,999 |
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Purchase Formaldehyde Removal Air Purifier/Air Purifier
Formaldehyde Removal Method 4: Formaldehyde Removal Services and Company
The use of photocatalyst is not only limited to filters, it can also be made into preparations. Currently, many formaldehyde removal services in Hong Kong provide door-to-door formaldehyde removal services, it mainly include spraying photocatalyst preparations containing titanium dioxide to different corners at your home. When the preparations are exposed to light, they will produce catalysis to remove formaldehyde.
Relative to c, some formaldehyde removal companies use air photocatalyst as a means to remove formaldehyde. This type of formaldehyde removal spray uses air as a medium to decompose formaldehyde. The advantage is that it can be used if there is not enough light in the place, in the closet, under the bed and other places. When you choose a formaldehyde removal company, you can additionally request for a spray to remove the odor. The price of formaldehyde removal varies. Check the following recommendation of the formaldehyde removal company:
Formaldehyde Removal Company Comparison
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| Envirosafe “Japan Patent” Air-catalyst VOCs Removal Service |
Envirosafe Air-catalyst, Chitin catalyst VOCs and Odor Removal Service |
GoGreen Japan Supreme In addition to Formaldehyde Combination (Medical Photocatalyst + Decomposition Source + Deodorant Purifying Agent) |
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| Service Provider |
Honour Envirosafe Tech Limited |
Honour Envirosafe Tech Limited |
GoGreen Environmental Service Limited |
| Type of Photocatalyst | Air Photocatalyst | Air Photocatalyst | Photocatalyst |
| Service | Formaldehyde Removal | Formaldehyde Removal Odour removal |
Formaldehyde Removal Odour removal |
| VOC Data Report (before and after formaldehyde removal) |
Included | Included | Included |
| Price (according to area) |
349 sq. ft or less: HK$2,699 |
349 sq. ft or less: HK$3,999 350 – 549 sq. ft : HK$5,900 550 – 749 sq. ft : HK$7,800 |
400 sq. ft or less: HK$2,300 401 – 500 sq. ft : HK$2,550 501 – 600 sq. ft : HK$2,800 |
| Purchase Now | |
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Purchase Removal Company Recommendation
Different Formaldehyde Removal Methods
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| Air | Plant | Air Purifier | Formaldehyde Removal Company |
Formaldehyde Removal Spray |
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| Principle | Maintain indoor ventilation so fresh air can reduce formaldehyde concentration | ||||
| Formaldehyde Removal Effectiveness | Moderate | Moderate | Effective | Very effective | Very effective |
| Required Time | 2 weeks to 1 month | Years | Have it on 24/7 for a period of time |
Immediate | Immediate |
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Combining the above methods, the formaldehyde removal company for new homes and newly renovated homes will have a better effect of removing formaldehyde than other methods. If it is for individual rooms or new furniture, it is best to spray the formaldehyde removal spray by yourself, but no matter what you choose, the removal effect of formaldehyde will be better with good ventilation as air photocatalyst requires continuous supply of fresh air to decompose formaldehyde.
As for the price of formaldehyde removal, formaldehyde removal companies and formaldehyde removal sprays have significant effects, although they cost more than others, you do get what you pay for, the formaldehyde could be removed at once and your home will be formaldehyde-free.
![EcoPro Japan Formaldehyde Removal Series - Patent Airless Photocatalyst 300ml Spray Pack [Original Licensed]](https://fwdhealth.esdlife.com/shop/content/images/thumbs/0006219_ecopro-300ml-_250.jpeg)
![Healthy home natural chitin removes formaldehyde antibacterial spray 300ml [Licensed Import]](https://fwdhealth.esdlife.com/shop/content/images/thumbs/0055143_-300ml-_250.jpeg)
![Raze Wood Anti Bacteria and Odors Spray 250ml [Licensed Import]](https://fwdhealth.esdlife.com/shop/content/images/thumbs/0008268_raze-wood-250ml-_250.jpeg)
