Hire the DefendAir HEPA 500 for clean, healthy air. Removing 99.97% of dust, smoke, and odours, it’s quiet, stackable, and perfect for construction, restoration, or refurbishment. Compatible with carbon filters, it’s the professional choice for maintaining air quality during building work or flood recovery projects effectively.
The DefendAir HEPA 500 set the benchmark for portable air filtration with its true HEPA filtration, robust rotomoulded design, and exceptional versatility. Although this model is now discontinued, it remains recognised for its powerful air purification capabilities across restoration, construction, and residential applications. Its combination of high airflow performance, ease of use, and compatibility with activated charcoal filters ensured effective removal of dust, odours, and harmful airborne particles wherever clean air was essential.
Typical Applications:
Benefits:
Specifics:
Legacy Note:
The DefendAir HEPA 500 features true HEPA filtration, which removes 99.97% of 0.3-micron particles for cleaner air.
It is effective at removing dust, odours (from smoke, paint fumes, and sewage), and harmful airborne particles. It is also compatible with activated charcoal filters for enhanced odour and VOC removal.
Yes, it has a durable rotomoulded design, making it lightweight, stackable, and built to withstand demanding job sites.
Yes, it includes built-in attachment rings for flexible ducting options, allowing for customised airflow setups.
It is designed for air purification in homes, offices, and construction sites, odour removal, dust control during building works and restorations, and supporting mould remediation and water damage projects.
It features variable speed control for efficient yet quiet operation, contributing to discreet use.






We understand the vital role that maintaining optimal humidity levels plays in ensuring a comfortable, healthy, and safe environment.
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| HA1 | Yes (Free Shipping) |
| HA2 | Yes (Free Shipping) |
| HA3 | Yes (Free Shipping) |
| HA4 | Yes (Free Shipping) |
| HA5 | Yes (Free Shipping) |
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| HA9 | Yes (Free Shipping) |
| HP10 | Yes (Free Shipping) |
| HP11 | Yes (Free Shipping) |
| HP14 | Yes (Free Shipping) |
| HP15 | Yes (Free Shipping) |
| HP16 | Yes (Free Shipping) |
| HP17 | Yes (Free Shipping) |
| HP18 | Yes (Free Shipping) |
| HP2 | Yes (Free Shipping) |
| HP21 | Yes (Free Shipping) |
| HP22 | Yes (Free Shipping) |
| HP23 | Yes (Free Shipping) |
| HP27 | Yes (Free Shipping) |
| HP3 | Yes (Free Shipping) |
| HP4 | Yes (Free Shipping) |
| HP5 | Yes (Free Shipping) |
| HP6 | Yes (Free Shipping) |
| HP7 | Yes (Free Shipping) |
| HP8 | Yes (Free Shipping) |
| HP9 | Yes (Free Shipping) |
| KT1 | Yes (Free Shipping) |
| KT10 | Yes (Free Shipping) |
| KT11 | Yes (Free Shipping) |
| KT12 | Yes (Free Shipping) |
| KT13 | Yes (Free Shipping) |
| KT17 | Yes (Free Shipping) |
| KT19 | Yes (Free Shipping) |
| KT2 | Yes (Free Shipping) |
| KT20 | Yes (Free Shipping) |
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| KT24 | Yes (Free Shipping) |
| KT3 | Yes (Free Shipping) |
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| KT6 | Yes (Free Shipping) |
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| KT8 | Yes (Free Shipping) |
| KT9 | Yes (Free Shipping) |
| N1 | Yes (Free Shipping) |
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| N12 | Yes (Free Shipping) |
| N14 | Yes (Free Shipping) |
| N16 | Yes (Free Shipping) |
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| N2 | Yes (Free Shipping) |
| N20 | Yes (Free Shipping) |
| N21 | Yes (Free Shipping) |
| N22 | Yes (Free Shipping) |
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| N6 | Yes (Free Shipping) |
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| N8 | Yes (Free Shipping) |
| N9 | Yes (Free Shipping) |
| NW1 | Yes (Free Shipping) |
| NW10 | Yes (Free Shipping) |
| NW11 | Yes (Free Shipping) |
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| NW4 | Yes (Free Shipping) |
| NW5 | Yes (Free Shipping) |
| NW6 | Yes (Free Shipping) |
| NW7 | Yes (Free Shipping) |
| NW8 | Yes (Free Shipping) |
| NW9 | Yes (Free Shipping) |
| SW11 | Yes (Free Shipping) |
| SW13 | Yes (Free Shipping) |
| SW15 | Yes (Free Shipping) |
| SW16 | Yes (Free Shipping) |
| SW17 | Yes (Free Shipping) |
| SW18 | Yes (Free Shipping) |
| SW19 | Yes (Free Shipping) |
| SW2 | Yes (Free Shipping) |
| SW20 | Yes (Free Shipping) |
| SW3 | Yes (Free Shipping) |
| SW4 | Yes (Free Shipping) |
| SW6 | Yes (Free Shipping) |
| SW7 | Yes (Free Shipping) |
| SW8 | Yes (Free Shipping) |
| SW9 | Yes (Free Shipping) |
| TW1 | Yes (Free Shipping) |
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| TW11 | Yes (Free Shipping) |
| TW12 | Yes (Free Shipping) |
| TW13 | Yes (Free Shipping) |
| TW14 | Yes (Free Shipping) |
| TW16 | Yes (Free Shipping) |
| TW2 | Yes (Free Shipping) |
| TW20 | Yes (Free Shipping) |
| TW3 | Yes (Free Shipping) |
| TW4 | Yes (Free Shipping) |
| TW5 | Yes (Free Shipping) |
| TW6 | Yes (Free Shipping) |
| TW7 | Yes (Free Shipping) |
| TW8 | Yes (Free Shipping) |
| TW9 | Yes (Free Shipping) |
| UB1 | Yes (Free Shipping) |
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| UB2 | Yes (Free Shipping) |
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| UB6 | Yes (Free Shipping) |
| UB7 | Yes (Free Shipping) |
| UB8 | Yes (Free Shipping) |
| UB9 | Yes (Free Shipping) |
| W10 | Yes (Free Shipping) |
| W11 | Yes (Free Shipping) |
| W12 | Yes (Free Shipping) |
| W13 | Yes (Free Shipping) |
| W14 | Yes (Free Shipping) |
| W2 | Yes (Free Shipping) |
| W3 | Yes (Free Shipping) |
| W4 | Yes (Free Shipping) |
| W5 | Yes (Free Shipping) |
| W6 | Yes (Free Shipping) |
| W7 | Yes (Free Shipping) |
| W8 | Yes (Free Shipping) |
| W9 | Yes (Free Shipping) |
Power supply: Always plug the unit directly into a properly grounded 230V socket. Avoid using extension leads or multi-plug adapters.
Positioning: Keep at least 30 cm clearance around the unit for airflow. Place on a level surface away from heat sources and flammable materials.
Water disposal: Regularly empty the water tank or connect the continuous drainage hose if provided. Never let the tank overflow.
Electrical safety: Do not operate with damaged cables or plugs. Do not immerse in water or expose to rain.
Children & pets: Keep the unit out of reach of children and pets.
Ventilation: Use in a ventilated area; never cover air intake or outlet.
Start-up: After placing and plugging in, switch on and select desired humidity level (often 40–50% RH for normal use).
Settings: Some models have ‘laundry’, ‘continuous’, or ‘eco’ modes — choose based on your needs.
Maintenance: Clean air filters weekly and check water tank daily.
Shutdown: Switch off and unplug before moving or cleaning the unit.