The term PM2.5 filter has become commonplace since COVID-19 came around – you hear it in the news, in ads, in press conferences, in health advice and so on… but not many people actually know what they are and how they work. In this post, we will explain to you the meaning of the term and why they are a great choice for an extra layer of protection.
By definition, a PM2.5 filter is a fine particle filter. The abbreviation PM2.5 stands for particulate matter 2.5, which is jargon for fine particles or droplets that are 2.5 microns or less in size. Such particles may reduce visibility and make air hazy.
Originally designed to filter the air in places where the air quality is not very good, PM 2.5 filters act as both mechanical and electrostatic barriers and protect the wearer against inhaling fine particles - when used in conjunction with a face mask, also function to block fine droplets from escaping the mouth and nose area and, therefore, help minimize the likelihood of wearers infecting others.
In short, PM 2.5 filters make masks better for wearers and those around them.
Quality PM2.5 filters are manufactured using similar materials to those used to manufacture quality respirators such as KN95 and N95, making them very good filters for respiratory droplets. Unlike the KN95 and N95 respirators which generally provide more inhalation resistance, PM2.5 filters can easily block most airborne droplets and particulates without significantly affecting breathing.
At Silk Masks Australia, we sell a PM2.5 filter as an add on to our silk masks. The filter we sell can be easily inserted into our masks to block harmful particles and aerosols. Remember, wearing a silk mask with a filter will not only be giving you extra protection from harmful particles but also offer better protection to others in the event that you may be unknowingly infected.