Breathe easy with SafeAir ultraviolet air purifier

Breathe easy with SafeAir ultraviolet air purifier

The SafeAir ultraviolet air purifier uses Ultraviolet Germicidal Irradiation (UVGI) and an Ionizer to effectively reduce and neutralise airborne microbes such as bacteria, viruses, pollutants and unpleasant odour particles. 

From the Smart Energy Management specialist Ulilog, the air purifier ensures clean, healthy indoor air quality by proactively controlling and reducing the transmission of airborne pathogens. Additionally, it neutralises known carcinogens like volatile organic compounds (VOCs), oxides of nitrogen (NOx) and second-hand tobacco smoke.

“We spend much of our day indoors – in the office, in shopping malls, on public transport, and at home – and interact with numerous people whose coughs, sneezes or even speech spreads airborne diseases,” say Ulilog directors Trevor Williams and Gail Reynolds.

“Some droplet nuclei can live in the air for hours and molecules from a cough or sneeze can travel an astounding 40 m! If you take into account that adults consume between 11 000 and 14 000 litres of air every 24 hours, breathing quality indoor air is vital for our wellbeing,” they note.

This non-invasive, odourless and quiet unit is ideal for almost any indoor space where people gather – such as offices, call centres, warehouses, schools, hotels, hospitals, public transport, gyms, malls and public bathrooms. Williams notes that the fitment of this device in an office environment, for example, will improve the health of personnel: “Healthy staff is a productive staff.”

Reynolds explains that the device, being fan-assisted, draws in air from the room, which passes over concealed ultraviolet lamps.         

According to The World Health Organization, tuberculosis (TB), a highly contagious airborne virus that is responsible for more deaths than HIV and malaria, is usually spread from one person to another through the air when a person with pulmonary or laryngeal TB coughs, sneezes or talks. It is estimated that about 80 percent of the South African population is infected with the TB bacteria, the vast majority of whom have latent rather than active TB.

Exacerbating the situation is the identification (a few years ago) of a highly infectious strain of TB, which is far worse than the extensive drug-resistant (XDR) TB. This strain is incurable and is non-responsive to any antibiotics used to treat XDR TB. The fact that patients diagnosed with incurable or “totally drug-resistant TB” are being sent home to be cared for by family members gives rise to fears that South Africa can face an epidemic.

UVGI is a sterilisation method that uses UV light at a sufficiently short wavelength to break down microorganisms. It is used in a variety of applications such as food, air and water purification. An air ioniser (or negative ion generator) is a device that uses high voltage to electrically charge air molecules. Negative ions, or anions, are particles with one or more extra electrons that present a net negative charge to the airborne particle.

The device is available in various models to address the risk of airborne diseases, and can be easily fitted on to a ceiling or against a wall. “We can even recess-fit the device to respect interior aesthetics,” Williams adds.

SafeAir is safe and emits zero direct radiation in accordance with the new international standard. The “fit-and-forget” device requires minimal maintenance; SafeAir’s UVC lamps have a lifespan of three years or 9 000 hours and the negative ion generator has a life expectancy of 50 000 hours.

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