The common method is ventilation and adsorption of various substances to reduce the concentration of formaldehyde, which is also accepted by most families. The advantages are simple and convenient, and do not need to spend more time to clean up. The disadvantage is that it takes a long time and the place is not thorough.

那么除甲醛主要有以下几种原理：

Then the main principles of formaldehyde removal are as follows:

1、物理遮盖法：菠萝、柚子皮、香水、空气清新剂；物理吸附类：活性炭、硅藻纯、纳米矿晶、芬多精等；物理封闭类：封闭剂。

1, physical cover method: pineapple, pomelo peel, perfume, air freshener; physical adsorption: activated carbon, diatom pure, nano mineral crystal, fentomin etc.; physical closure class: sealant.

2、化学法：甲醛具有还原性，其与具有强氧化性的物质发生氧化还原反应，将甲醛氧化成甲酸，从而降低甲醛的含量。

2. Chemical method: formaldehyde has reducibility, and it reacts with strong oxidizing substances to oxidize formaldehyde into formic acid, thus reducing the content of formaldehyde.

3、提取法：从植物的微生物喷涂在施工表面，自身降解或产生相应物质与甲醛反应去除甲醛。

3. Extraction method: from the plant microorganism spray on the construction surface, self degradation or produce corresponding substances and formaldehyde reaction to remove formaldehyde.

4、根源去除：植物蛋白除甲醛，以植物蛋白为主要原料，渗透到材料内部，与甲醛发生反应，除掉甲醛，并生成水、分子凝胶这些无害物质。

4, root removal: plant protein in addition to formaldehyde, plant protein as the main raw material, penetrated into the interior of the material, react with formaldehyde, remove formaldehyde, and generate non-toxic and harmless substances such as water and molecular gels.