Can masks filter formaldehyde?
Oct 31, 2024
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Generally, masks containing an activated carbon filter layer can filter formaldehyde to some extent; however, ordinary medical masks, haze masks, etc., are usually not effective in filtering formaldehyde. In daily life, it is important to ensure proper indoor ventilation, choose environmentally friendly and safe building materials, and place indoor plants to help purify the air.
Generally, whether a mask can filter formaldehyde depends mainly on the type and design of the mask. Masks with an activated carbon filter layer can remove formaldehyde to some extent, while ordinary medical masks, haze masks, and similar types are generally ineffective at filtering formaldehyde. If any discomfort occurs, it is recommended to seek timely medical evaluation and treatment at a正规 hospital. The detailed analysis is as follows:
If the mask contains an activated carbon filter layer, it can adsorb harmful gases—including formaldehyde—into the pores on the surface of the activated carbon, thereby filtering out some formaldehyde molecules and reducing inhalation. However, the effectiveness of activated carbon masks in filtering formaldehyde is limited, and once the adsorption capacity reaches saturation, their filtration efficiency drops significantly.
Ordinary medical masks, haze masks, and similar types are primarily designed to block airborne particles such as dust, pollen, and bacteria. Formaldehyde is a colorless gas with small molecular size, which makes it difficult for these masks' filter layers to capture. Therefore, they do not provide effective protection against formaldehyde pollution.
In daily life, it is important to ensure proper indoor ventilation, choose environmentally friendly and safe building materials, and place indoor plants to help purify the air.
