Degradable air filter - Henkaes launches degradable HEPA filter

General household air filters are mostly not hazardous waste because they filter particulate matter. But it does not mean that the air filter will not have a negative impact on the environment. For example, the meltblown material that makes up the HEPA filter will be compounded with a layer of PET material to increase stiffness. PET is almost impossible to be effectively decomposed by microorganisms in the natural environment (such as soil and water). Its stable chemical structure (strong ester bonds and aromatic rings) makes it take hundreds of years to slowly break down, eventually forming microplastics, rather than completely degrading into harmless substances.

The air filter launched by Nantong Hengjia uses degradable PLA material instead of PET to solve this environmental problem. Let's take H13 filter paper as an example to look at a set of intuitive experimental data.
Weight record:

It can be seen that under the irradiation of ultraviolet light, as time goes by,
It can be seen that under the irradiation of ultraviolet light, as time goes by, the PLA substrate begins to curl;
The surface of the H13-HEPA substrate begins to turn yellow, and gradually, the sporadic parts in the middle begin to be damaged. Until the end of the experiment, most of the substrate is damaged and significantly adhered, and the gram weight drops to 48% of the initial; the H13-HEPA substrate and meltblown are layered as a whole;

With the improvement of environmental awareness, for the sustainable development strategy of the environment, the correct disposal of waste products is an important part of personal participation in environmental protection, and more and more consumers are beginning to pay attention to the added value of products. Degradable air filters have gradually become a selling point. Interested friends can communicate online (WeChat 15262821108) Nantong Hengjia will continue to explore sustainable material systems.