McGreals Health has launched the innovative Defend 400 as the next generation model to their range of Novaerus air cleaning devices. Using pioneering patented NanoStrike™ air disinfection technology it inactivates 99.9% of all airborne viruses, bacteria and fungi including Sars-CoV-2 (the virus that causes COVID-19) and mitigates odours, pollen and mould spores to support user’s health and wellbeing all year round.

The medical grade and portable Defend 400 has a four-stage pathogen inactivation and filtration – the NanoStrike system inactivates while the use of medical-grade filters capture nanosized pathogens in the air, providing advanced rapid air dis-infection and purification to users.  The Irish-designed Defend 400 advances indoor air quality (IAQ), is FDA approved and CE marked. Those suffering from respiratory diseases and allergies have seen a positive benefit from using Novaerus devices and its use has also shown to reduce absenteeism* in the workplace.

Deirdre Devitt, CEO of Novaerus by McGreals Health, which distributes the devices in Ireland, said: “We are delighted to be adding the Novaerus Defend 400 to our product portfolio. Indoor air quality has become an essential health and safety component across all businesses and organisations in every sector. Providing clean air is a priority, especially when we know that indoor air can be up to twice, even five times** more polluted than outdoor air. As we’ve learnt, this can lead to illnesses and infections, but we also know that it can reduce cognitive function which impacts productivity levels in the workplace. Clean air technology can play a central role to support everyone’s wellbeing and comfort levels whether they are at home, at work or in any indoor setting.”

The Novaerus range of portable air cleaning devices are available in four sizes (NV 200, NV 800, Defend 400 and Defend 1050) catering for small to large spaces. Developed by WellAir, the Novaerus devices are sold in 72 countries worldwide, supporting all sectors with additional frontline protection without generating any harmful by-products to clean the air 24/7. The Defend 400 is available from €6,500 (ex VAT). For more information visit

McGreals Health, distributor of Novaerus NanoStrike™ technology in Ireland are the Official Clean Air Partner to Leinster Rugby.