Blog Post View


Microbial Monday!


Controlling Bio-aerosols

While complete elimination of microorganisms from your home is impossible, their numbers must be regulated at acceptable levels despite their pathogenicity because sheer numbers of airborne cells serve as particulate contamination. Heavy bio-aerosol presence is correlated with sick building syndrome (SBS) and building related illnesses (BRI).


The most common form of Bio-aerosol control is via filtration. This presents a physical block for the microorganisms and removes them from your air column. The typical HEPA (high efficiency particulate air) filter must remove 99.97% of particles that measure greater than 0.3 mm, but this leaves small bacteria, viral particles, tobacco smoke, and other volatile organic compounds untouched. Even the best filters are inefficient due to the force required to pull the air through such small pores.


The most assured way to rid noxious gasses in a timely manner is outside ventilation. Most residential systems are closed loop and if an old filter is in place then your system could be potentially circulating contaminated air. To remove the VOC build-up you can open a window or door, but if the source of contamination isn’t removed then the system will remain contaminated.

Biocidal Control

The most assured way to have complete removal of contaminants is to inactivate and remove the source point. Our trained Rotobrush technicians will inspect every inch of your vents and not only identify but also remove the source of airborne pollution. Autoclaves, such as pictured above, is our best form of inactivation but cannot be applied to large scale due to technical issues that arise. UV sterilization works but some organisms are resistant to this treatment. Our technique of applying an antimicrobial mist after we scrub your vents is the superior form of ensuring a safe and clean environment for you and your family to enjoy.