Month: May 2020

Dear Air Purifier Manufacturers

Sotirios Papathanasiou3 Comments

An Introduction

Air purifiers are machines that help us breathe cleaner air when for some reason the air quality indoors is bad. There are a lot of companies and models out there for costumers to choose and most of them offer some kind of High-efficiency particulate air filtration aka (HEPA).

HEPA filters are made by compressing randomly together thin fibers of glass or synthetic material like PP+PET with diameters between 0.5 and 2.0 microns. The air space between HEPA filter fibers is typically much greater than 0.3 μm.

HEPA Fiber2_0094
Clean HEPA fibres

Read More »

Nanoparticles in the air we breathe

Sotirios PapathanasiouLeave a comment

What are nanoparticles?

Let’s dive into nanoparticles or as the atmospheric scientists call them ultrafine particles (UFP) or PM0.1. The term nanoparticles applies to material engineering, eventually, both terms are the same thing. A nanoparticle is a microscopic particle with at least one dimension less than 100nm. One nanometer (1nm) is only three to five atoms wide.

Recent research suggests these nanoparticles could be responsible for illness and death beyond our current understanding. We know that PM2.5 is quite small and can penetrate deep inside our bodies and it can reach even the alveolar sacs where the exchange of oxygen and carbon dioxide occurs.
PM2.5 is around 2,500 nanometers (nm) in diameter. However, nanoparticles are 100nm (0.1μm) or less. In comparison, they are 25 times smaller, as a result, they can reach any organ in our bodies.

Read More »

See The Air – Proof that air pollution kills

Sotirios Papathanasiou1 Comment

Since my first book “See The Air | The Essential Guide for Optimal Air Quality in Your Life“ was published back in 2017 many have read it, and many have followed my example and tried to write and describe the problem too.

There is some interest in the field, and I want to contribute even more by gathering all the available information regarding air pollution and its impact on health in this book. My intention here is clear, I want to shock people and authorities and make it clear that there is proof. Air pollution kills millions of people every year, and there is no excuse not to listen to brilliant scientists and the noble work they have done.

The book is available in digital and paperback form.

or