Home air purifiers have limited filtering capacity for free formaldehyde in the air, and filters are easily saturated. Formaldehyde is mainly hidden inside boards and continuously released; it is recommended to maintain long-term ventilation; if you need to treat the pollution source, please consult a professional organization with relevant test evaluations.
Physical limitations of air purifiers
Formaldehyde molecules are tiny and are released at a high speed. The contact time in the activated carbon of an air purifier is insufficient for complete adsorption. If the filter is saturated and not replaced in time, it may release already-adsorbed formaldehyde.
The continuous release characteristic of formaldehyde
Formaldehyde originates from adhesives and boards, and the release period can reach several years. Relying solely on an air purifier cannot prevent release at the source; it must be combined with ventilation and professional evaluation.
Environmental self-testing and governance steps
Before carrying out deep governance, please clarify the source of pollution through testing.
- Ensure smooth indoor ventilation
- Monitor changes in temperature and humidity
- Perform professional air quality testing
Professional consultation
壹家壹清潔專家 provides professional formaldehyde governance solutions, using scientific means for source control. You are welcome to contact us to inquire about related technologies and the latest price list.


