Frequently Asked Questions

Answers to the questions we’re asked most often about PerfectAire air purifiers, solutions and care. Can’t find what you need? Contact us.

How does a PerfectAire air purifier work?

PerfectAire units use water-based (hydro) filtration. A fan draws room air into the bowl, where it mixes with water and a purifying solution. The scrubbing action traps dust and other airborne particles in the water, and the cleaned air is released back into the room.

How large an area does one unit cover?

It depends on the model, but most PerfectAire air purifiers cover around 70 to 80m². PerfectAire diffusers cover about 30m².

What does the ioniser do, and is it worth having?

The ioniser releases negative ions that attach to positively charged particles such as dust, allergens and smoke. The particles clump together, become heavier and settle out of the air onto nearby surfaces. Because it speeds up the cleaning process, a unit with an ioniser is worth the small extra cost.

Why do some units have LED lights?

The lights are there for looks and for colour therapy. Many people use them as a gentle night light in a child’s bedroom, and they add a soft glow to a living room or study area.

What water should I use?

Cold tap water is fine in most parts of South Africa. If your area has hard water, clean the unit more often, because lime builds up on the bowl and the top of the unit. If that build-up isn’t removed, it can make the motor overheat and burn out.

Can I wash the bowl in hot water or a dishwasher?

No. Hot or boiling water and dishwashers will shrink the plastic bowl. Wash it by hand in cool water.

How often should I change the water and solution?

On average, about every three days. Change it more often if the room is dusty or someone smokes indoors.

What is the difference between an air purifier, a humidifier and a diffuser?

An air purifier cleans the air by trapping airborne contaminants such as dust, mould spores and smoke, and is designed for everyday use. A humidifier adds moisture to dry air and is mostly used in winter. A diffuser spreads the scent of essential oils into a room for aromatherapy, but it doesn’t clean the air.

Has the Microbeshield solution been laboratory tested?

Yes. Independent laboratories have tested the Microbeshield solution using the BS EN 1040 suspension test, which measures how well a liquid kills bacteria on direct contact. In a 2019 test by ALS Technichem in Singapore, Peppermint and Eucalyptus Microbeshield concentrate diluted 1:100 killed more than 99.99% of Staphylococcus aureus and Pseudomonas aeruginosa within five minutes. In a 2013 test by TÜV SÜD PSB, undiluted Microbeshield killed more than 99.99% of the same two bacteria after 30 to 60 minutes. These tests measure the solution itself, not the air in a room. If you have a medical condition, please speak to your doctor.

Can I get my unit cleaned or buy spare parts?

Yes. We offer a professional unit cleaning service, and replacement bowls, spindles and silencers are available in our Accessories section.