How Infections Are Transmitted

There are four main methods in which infections are transmitted, they are:

Food infection control

Controlled by:

  • Food hygiene practices
Contact infection control

Controlled by:

  • Hand washing
  • PPE
Objects infection control

Controlled by:

  • Cleaning
Air infection control

The Problem


Woman sneezing


Large droplets will only be propelled a short distances (2m) through the air, They will however then settle on surfaces and can become airborne again from natural air currents created from activity in the room. Furthermore evaporation of the droplet will make them smaller called droplet nuclei, placing them in a state where they can re-infect a susceptible host.

Airborne aerosols


Also released by coughing and sneezing there are much smaller droplets which are light enough to float.  They can move over longer distances and stay airborne for longer periods. These droplets will be widely dispersed by air currents before being inhaled, or deposited on surfaces, equipment etc.


Ventilate the room

Open the windows

Lower the room temperature

Turn down heating

Increase fresh air through air-conditioning

Call the maintenance team

Still a problem?

If you have rooms that are small, kept above average temperature and heavily used?

A UV air steriliser1 is a plug and play solution

1 UK Government
Scientific Advisory Group for Emergencies

meeting date 20 May 2020
Summary of disinfection technologies for microbial control.
Germicidal UV (GUV) is a technology that could be beneficial for decontamination and reducing aerosol concentrations in some occupied environments.


Medixair air cleaning process

Air drawn through medixair’s chamber at a controlled speed

Airborne pathogens are exposed to high levels of UVc radiation

Controlled air speed +
Powerful UVc exposure =
Clean air


Medixair coverage
  • Covers 25m2 area
  • Whisper quiet
  • No ozone produced
  • 90W power consumption
  • Wall mount or mobile stand options available

A single Medixair unit will emit 25m3 of sterilised air per hour

Medixair can provide differing levels of protection against aerobiological contamination, providing an air changes every hour, or every two or three hours as required. 

The level of protection provided may be adjusted by varying the number of units installed in any given space. 

Unless there is a reason to do otherwise (i.e. an extreme level of risk) we recommend one machine to treat 75m3.

Therefore, with a typical room height of approximately 2.5 m this would equate to a floor area of 30m2. (75m3/2.5m).  

For example, a 6m x 5m room.

Suggested Air Change Time Periods
Clinical treatment Room1hr
Hospital Side Room1hr
Consulting Room2hrs
Locker Room3hrs
Kitchen or Laundry3hrs
General Office3hrs

Effective infection control for indoor environments.

Medixair standing