Best Air Purifiers for Hayfever, Asthma & Allergies

Hayfever affects millions of Australians each year, turning the simple act of breathing into a daily struggle. With National Asthma Week approaching (1-7 September 2025), there’s never been a better time to explore how the right air purifier for allergies can transform your home into a haven of clean, breathable air. Just in time for spring!

How Air Purifiers Work

Allergy and hayfever relief starts with understanding how air purifiers work. Unlike basic fans that just move air, the best air purifiers for hayfever use advanced filters to trap microscopic particles like pollen, dust mites, pet dander, and mould. Air purifiers remove allergens that make life uncomfortable for allergy and asthma sufferers.

Today’s air purifiers for asthma and allergies go beyond just filters. They use multi-stage systems, smart sensors to monitor air quality in real-time, and antimicrobial technology to neutralise viruses and bacteria. This creates a healthier indoor environment, improving sleep, focus, and overall wellbeing.

Understanding How Air Purifiers Combat Seasonal Allergies

Air purifiers work by pulling in air and filtering out contaminants through multiple stages. Most air purifier’s pre-filter traps larger particles like dust and pet hair, while the activated carbon layer neutralises odours and chemical pollutants.

A standout feature of many air purifiers is the HEPA-13 filter, which removes up to 99.97% of particles like viruses and allergens as small as 0.3 microns ¹. For comparison, most pollen particles are 10-100 microns, making them easy to capture.

Top-quality purifiers also feature smart sensors that monitor air quality, automatically increasing filtration when pollen counts rise or cooking affects air quality. This ensures clean air without constant manual adjustments.

The Essential Features to Look For In An Air Purifier

• Room Coverage:
  • Choose an air purifier designed for at least the size of your room (or 20-30% larger for better performance).
  • A unit for 30m2 won’t work effectively in a 60m2 space.
• CADR (Clean Air Delivery Rate):
  • Look for high CADR ratings for pollen, dust, and smoke.
  • Higher CADR means faster and more efficient removal of pollutants.
• Smart Connectivity:
  • App controls allow you to monitor air quality, adjust settings remotely, and get pollen alerts.
  • Voice control (Alexa or Google Assistant) makes adjustments easier when your hands are occupied.
• Noise Levels:
  • Consider quieter units, especially for bedroom use.
  • The best purifiers operate quietly on low settings while maintaining effective filtration.

Top Air Purifier Recommendations for Australian Homes

For Large Spaces: Breville’s the Smart Air™ Viral Protect Max Purifier – (LAP608TTM)

Breville’s the Smart Air™ Viral Protect Max Purifier is an excellent choice for large Australian homes, purifying areas up to 138m2 with its powerful 4-stage filtration system. Its 360-degree air inlet ensures full room coverage, and the HEPA-13 filter removes 99.97% of allergens and viral particles.

With a CADR of 530m³/hour and the intelligent SensAir System, it adjusts automatically to air quality, making it ideal for high-pollen days. Sleep mode runs at just 26dBA—quieter than a whisper—perfect for bedrooms during hayfever season.

For Mid-Sized Rooms: Breville’s the Smart Air™ Viral Protect Plus Purifier  – (LAP408WHT)

As it delivers the same advanced technology as its larger counterpart, Breville’s the Smart Air™ Viral Protect Plus Purifier is optimised for rooms up to 42m2. Perfect for bedrooms, home offices, or smaller living spaces, it features a 4-stage purification system with a Microbe Shield™ light for extra protection against bacteria and viruses.

With 4 speed settings and 360-degree airflow, it effectively removes pollen, pet dander, and other allergens. The dual display shows air quality clearly, while smart app control lets you adjust settings remotely—so clean air is always ready when you get home.

For Budget-Conscious Buyers: Electrolux’s UltimateHome 500 Air Purifier  – (EP53-47SWA)

The Electrolux UltimateHome 500 Air Purifier offers great value without missing essential features. Ideal for mid to large rooms, it uses a 4-stage filtration system with 5 speed settings for tailored purification. Smart app control lets you monitor and manage air quality remotely.

Focusing on core functionality, this Electrolux Air Purifier effectively removes dust, odours, and allergens. While it lacks some premium features, it provides a compact and reliable allergy relief solution for families on a budget.

For Compact Spaces: Dimplex’s Air Circulator + Purifier – (DCACP23)

With its compact size, Dimplex’s Air Circulator & Purifier offers great value without missing essential features. Ideal for mid to large rooms, it uses a built-in filtration system with 3x speed settings for tailored purification. Its 24 hour timer, remote control and adjustable oscillation and tilt head lets you manage air quality to suit your needs.

As the Dimplex Air Circulator & Purifier effectively removes dust, odours and allergens, it can also be used to supplement larger units, helping you direct cool or warm air. While it lacks some premium features, this unit provides reliable allergy relief for families on a budget.

For Versatile Protection: Breville’s All Climate™ 2-in-1 Dehumidifier & Purifier – (LAD358TTM)

This Breville All Climate™ 2-in-1 Dehumidifier & Purifier tackles a key issue in allergy management—humidity control. Excess moisture promotes dust mites and mould growth, common triggers for allergies and asthma. This unit combines dehumidification with AntiViral HEPA-13 filtration to address multiple allergens.

Certified by the National Asthma Council Australia, this Sensitive Choice approved model removes up to 8L of moisture daily while filtering airborne particles. The laundry mode is especially helpful during wet weather, fast-tracking clothes drying indoors and preventing musty conditions that worsen allergy symptoms.

Maximising Your Air Purifier’s Effectiveness

• Placement Tips for Optimal Performance:
  • Keep air purifiers away from walls and furniture to allow unrestricted airflow.
  • Place air purifiers in central locations for better coverage.
  • Avoid positioning near windows on high pollen days to prevent pulling in contaminated outdoor air.
• Maintenance Tips:
  • Check pre-filters monthly and replace them when visibly dirty.
  • Replace HEPA filters every 6–12 months, depending on usage and air quality.
  • Look for units with filter replacement indicators for easier maintenance tracking.
• Usage Recommendations:
  • Run your air purifier continuously for consistent air quality, not just during allergy season.
  • Use lower settings for energy efficiency—many models use less electricity than a standard light bulb.

Take Control of Your Indoor Air Quality Today

Clean air isn’t a luxury—it’s essential, especially for the millions of Australians with hayfever and asthma. The right air purifier can turn your home into a space where you can breathe easily, sleep well, and live without constant allergy symptoms.

Don’t let another hay fever season control your life. Take the first step towards breathing easier and start exploring your options today.

Explore Top Air Purifiers