General Air Purifier FAQs

What does an air purifier do?
An air purifier filters and cleans indoor air by removing or reducing airborne particles and other contaminants. Depending on the model, Purified Air Australia air purifiers use combinations of pre-filters, HEPA filters, activated carbon and other purification technologies to help reduce dust, pollen, smoke, odours, mould spores, PM2.5 and other airborne pollutants.
Indoor air can contain dust, pollen, pet dander, smoke, mould spores, fine particles, odours and other pollutants. An appropriately sized air purifier can continuously filter the air in your living environment and help maintain cleaner indoor air.
The pollutants an air purifier can address depend on its filtration system. Purified Air Australia’s range is designed to help reduce airborne particles such as dust, pollen, allergens, mould spores and smoke particles. Models containing activated carbon can also help reduce odours, smoke-related gases and certain VOCs.
Yes. HEPA filtration is designed to capture fine airborne particles, including dust and many common airborne allergens. A washable pre-filter can also capture larger particles and help protect the main filtration stages.
Yes. Pollen and pet dander are airborne particles that can be captured by high-efficiency filtration. Purified Air Australia recommends appropriately sized HEPA air purification as part of an overall strategy for improving indoor air quality.
Yes. HEPA filtration can capture smoke particles, while activated carbon can help absorb smoke-related odours and certain gases. Purified Air Australia specifically identifies smokers as an important customer group for its air purification products.
An air purifier can help capture airborne mould spores and particles. However, an air purifier does not remove the source of an established mould problem. Any water damage, excessive moisture or visible mould growth should be addressed separately.
Yes. Activated carbon filtration is designed to absorb odours, gases and certain VOCs. The effectiveness depends on the type and concentration of the odour and the condition of the carbon filter.

Purified Air Australia Model

Which air purifier is right for my room?

The current Purified Air Australia range includes models for different room sizes and requirements:

  • A5B: >25 m², CADR 200 m³/h
  • K06C: >50 m², CADR 320 m³/h
  • K07: 50–75 m², CADR 360 m³/h
  • K08D: >100 m², CADR 550 m³/h
  • K09A: 100–150 m², CADR 600 m³/h
  • K15C: >200 m², CADR 800 m³/h

These figures are based on the current product listings and should be considered alongside room layout, ceiling height and air-quality requirements.

For a bedroom, choose a purifier according to the room size and desired noise level.

The A5B and K06C are suitable options for smaller spaces, while K07, K08D, K09A and K15C provide greater air-cleaning capacity for larger bedrooms or open-plan areas.

The K07, for example, has a published noise specification of ≤29.4 dB.

For larger living rooms and open-plan spaces, a higher-CADR model may be more appropriate.

The K09A provides a CADR of 600 m³/h for areas listed at 100–150 m², while the K15C provides 800 m³/h and is listed for areas over 200 m².

It depends on your home’s size and layout.

An air purifier works most effectively within the area where air can circulate through the unit. Multiple enclosed rooms may require multiple units for effective whole-home coverage.

Purified Air Australia recommends considering multiple units for larger homes and offices where appropriate.

For a large house, multi-level home or property with several separate rooms, multiple appropriately sized air purifiers can provide more effective coverage.

This allows each unit to concentrate on a specific living or working area instead of relying on one purifier to clean air throughout the entire property.

Smart Air Purifier FAQs

Do Purified Air Australia air purifiers have Wi-Fi?

Yes. Several models in the current range offer Wi-Fi connectivity, including the A5B, K06C, K07, K08D, K09A and K15C.

The exact smart functions vary by model.

Selected Wi-Fi-enabled models provide remote control functionality.

This can be particularly useful if you want to start purification before arriving home or adjust the purifier remotely.

Selected models include child-lock protection.

For example, the K07 and K15C specifications list child-lock functionality.

Selected models include PM2.5 sensors and displays.

The K15C, for example, includes real-time PM2.5 sensing and an air-quality indicator.

Energy & Running Cost FAQs

How much electricity does an air purifier use?

Power consumption varies by model and operating speed.

For example, the K07 is specified at 90W, while the K15C is specified at 85W. Actual electricity consumption depends on the selected operating mode and how long the unit operates.

Your running cost depends on the purifier’s power consumption, operating speed, hours of use and electricity tariff.

As a simple calculation: Running cost = Power consumption (kW) × hours used × electricity rate Using Auto or Sleep Mode where appropriate can help manage operating time and fan speed.

Buying From Purified Air Australia

Do you ship across Australia?

Purified Air Australia operates in Australia and sells its air purifiers and replacement filters online.

The website highlights Fast Shipping, On Time Delivery, Low Price Guarantee and Quality Guarantee.

Delivery charges can depend on the product and destination. Customers should check the current shipping cost during checkout or contact Purified Air Australia for assistance

Warranty terms can vary by product. Customers should check the warranty information supplied with their specific product or contact Purified Air Australia before purchase for the current warranty terms.

Yes. Purified Air Australia offers advice to help customers choose a system based on factors such as room size, air-quality concerns, CADR, filtration requirements, noise and intended use.

If you’re unsure which model is suitable, contact the team before purchasing.

HEPA & Filtration FAQs

What is a HEPA filter?
HEPA stands for High Efficiency Particulate Air. HEPA filters use a dense filter material designed to capture very small airborne particles. Purified Air Australia’s HEPA information explains that True HEPA H13 filters have a minimum efficiency of 99.95% for particles down to 0.3 micrometres.

HEPA filtration primarily targets airborne particles such as dust, pollen and fine particulate matter.

Activated carbon is designed to absorb gases, odours and certain volatile organic compounds (VOCs).

Using both technologies together provides complementary particle and odour/gas filtration.

A pre-filter is the first filtration stage in many air purifiers. It captures larger particles such as dust, hair and other debris before air reaches the main filters.

Keeping the pre-filter clean can help protect the main filtration system and maintain performance.

CADR stands for Clean Air Delivery Rate. It indicates the volume of cleaned air an air purifier can deliver.

A higher CADR generally means the purifier can clean a larger volume of air more quickly, making CADR an important specification when choosing an air purifier for a particular room.

Not necessarily. The right CADR depends on the size and characteristics of the space.

A very high-CADR purifier may be unnecessary for a small bedroom, while a low-CADR model may not be suitable for a large open-plan living area.

The best choice combines appropriate CADR, filtration technology, room size, noise level and your specific air-quality requirements.
Choosing the Right

Air Purifiers for Specific Needs

Can an air purifier help with allergies?

An air purifier with high-efficiency HEPA filtration can help reduce airborne particles such as pollen, dust and other allergens.

Purified Air Australia recommends combining air purification with regular cleaning, appropriate ventilation and other measures to manage indoor air quality.

Yes. Pet dander and other pet-related airborne particles can be captured by HEPA filtration. Activated carbon filtration can also help reduce pet-related odours.

The K09A, for example, uses a washable pre-filter, activated carbon and H11 HEPA filtration.

Yes. During periods of outdoor smoke and poor air quality, a suitable HEPA air purifier can help reduce airborne particulate matter indoors.

For smoke events, choose a purifier with sufficient CADR for the room and follow relevant Australian health and emergency advice.

Yes. HEPA filtration helps capture smoke particles, while activated carbon can help reduce smoke-related odours and gases.

Purified Air Australia specifically identifies smokers as one of its major customer groups.

Activated carbon filtration can help absorb certain volatile organic compounds (VOCs) and gases.

The effectiveness varies depending on the particular VOC, its concentration, the amount of activated carbon present and the operating conditions.

Yes. Purified Air Australia recommends models such as the A5B for smaller nurseries, K06C for medium rooms and K07, K08D and K15C for larger spaces.

Features to consider include HEPA filtration, activated carbon, quiet operation, air-quality monitoring and child-lock functionality.

Yes. Purified Air Australia provides air-purification solutions for schools, childcare centres and educational environments.

For classrooms, important considerations include CADR, room size, occupancy, filtration, noise and air-quality monitoring.

Yes. Air purification can be used as part of an indoor air-quality strategy in aged-care environments.

The appropriate system should be selected based on room size, occupancy, ventilation, CADR, filtration requirements and operating conditions.

Noise, Sleep & Everyday Use

Are Purified Air Australia air purifiers quiet?

Several models are designed for quiet operation.

For example, the K07 has a published noise specification of ≤29.4 dB, while the K15C is listed at 26 dB. Actual noise depends on the operating speed and selected mode.

Yes. Applicable Purified Air Australia models include Sleep Mode and are designed for quiet operation.

A suitably sized purifier can continuously filter bedroom air while you sleep.

Purified Air Australia air purifiers are designed for continuous indoor air purification.

Operating requirements vary by model. Auto and Sleep modes can help manage operation according to your environment and personal requirements.

Selected models include air-quality sensors and automatic operation.

For example, the K15C includes real-time PM2.5 monitoring, an AQI indicator and Auto Mode.

Filter & Maintenance FAQs

How long do air purifier filters last?

There is no single replacement interval that applies to every environment. Filter life depends on factors such as the area being covered, contaminant levels, operating hours, filter size and filter quality.

Purified Air Australia’s filter guidance states that HEPA and activated carbon filters can last up to approximately 12 months, depending on conditions.

Purified Air Australia air purifiers provide filter reminders on applicable models.

A filter may also require replacement when it becomes heavily discoloured, when PM readings remain higher than usual or when previously controlled odours begin to return.

Purified Air Australia recommends contacting them if you are unsure about the condition of your filter.

Some pre-filters are washable and should be inspected and cleaned regularly.

The main HEPA and activated carbon filters are generally replaced rather than washed. Always follow the maintenance instructions for your specific model.

The pre-filter should be inspected and cleaned regularly. The required frequency depends on the amount of dust, hair and other contaminants in your environment. Regular pre-filter maintenance helps support the performance and lifespan of the main filters.

Replacement filters are available through the Purified Air Australia online store.

Current listings include replacement filters for models such as A5, K07, K08, K09 and K15.

Australian Air Quality FAQs

What is the best air purifier in Australia?

There is no single best air purifier for every Australian home.

The right choice depends on room size, CADR, filtration technology, noise level, contaminants, budget and intended use.

Purified Air Australia’s range provides different capacities, from the compact A5B through to the high-CADR K15C.

For smoke, look for an air purifier with high-efficiency particle filtration and activated carbon.

HEPA filtration helps capture smoke particles, while activated carbon helps address smoke-related odours and certain gases.
The purifier should also have sufficient CADR for the room.

A HEPA air purifier can help capture airborne mould spores.
However, an air purifier should not be considered a replacement for fixing moisture problems or professionally treating established mould.

For larger areas affected by airborne mould particles, choose a purifier with sufficient CADR for the space.

The best HEPA air purifier depends on your room size and requirements.

Purified Air Australia’s range includes several models with high-efficiency filtration, with different CADR capacities designed for different areas.

For example, the K07 provides 360 m³/h CADR, while the K15C provides 800 m³/h CADR.

Purified Air Australia provides air-purification solutions for Australian homes, offices, schools, childcare facilities and aged-care environments.

The range combines different levels of CADR, HEPA filtration, activated carbon, air-quality monitoring, smart controls and other features to provide options for different indoor environments.
The company also provides replacement filters and customer support to help customers maintain their air purification systems.

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