Perfect Fit
Designed specifically for compatible Envirotech purifiers.
Need Replacement Filters?
Get original Envirotech replacement filters for optimal air purification performance and long-lasting everyday freshness.
Choose your purifier model and we'll take you to the right replacement filter.
Why choose original Envirotech filters?
Maintains Performance
Helps your purifier work at its absolute best.
Easy Replacement
Simple and quick to remove and install without tools.
Genuine Quality
Built with highly reliable materials for long-lasting everyday use.
FOR OLIVIA 300
Olivia 300 Replacement Filter
Keep your Olivia 300 performing at its best with a compatible replacement filter designed for compact rooms, bedrooms, study rooms, kids' rooms, and personal spaces.
Compatible With
Olivia 300 Air Purifier
Filtration Type
Pre-Filter + H13 HEPA + Activated Carbon
Best For
Dust, fine particles, allergens & odours
Recommended For
Rooms up to 300 sq. ft.
Replacement Use
Replace when filter life ends or performance reduces
Also available on
FOR OLIVIA 700
Olivia 700 Replacement Filter
Designed for larger-room purification, the Olivia 700 replacement filter helps maintain strong airflow and filtration performance for living rooms, offices, meeting rooms, cabins, and shared spaces.
Compatible With
Olivia 700 Air Purifier
Filtration Type
Pre-Filter + HEPA + Activated Carbon
Best For
Dust, allergens, smoke, odours & fine pollutants
Recommended For
Large rooms, offices & living spaces
Performance Support
Helps maintain CADR and purification efficiency
Also available on
FOR AEROROZ
Aeroroz Replacement Filter
Maintain cleaner airflow through your split AC with a compatible Aeroroz replacement filter designed for easy installation and everyday AC room use.
Compatible With
Aeroroz Split AC Air Purifier
Filtration Type
Pre-Filter + HEPA Filter
Best For
Dust, fine particles, AC room pollutants
Installation Type
Easy DIY replacement
Power Usage
No extra plug or electricity required
Also available on
When should you replace your filter?
Reduced Airflow
If airflow feels weaker than usual, your purifier or filter may need immediate replacement.
Visible Dust Build-Up
Heavy dust on the filter surface can affect overall purification performance and indoor health.
Odour Returns
If room odours return quickly, the activated carbon layer inside may be fully saturated.
Filter Indicator
Replace the filter when your purifier displays the automatic replacement alert.
Easy filter replacement in minutes
1
Turn off the device
Switch off and unplug your purifier before replacing the filter.
2
Open the filter panel
Remove the filter cover carefully or slide the latch.
3
Remove the used filter
Take out the old filter and dispose of it properly.
4
Insert the new filter
Place the compatible replacement filter inside correctly.
5
Restart and reset
Turn on the purifier and reset the filter indicator if required.
Replacement filter FAQs
Check the model number on the bottom or back of your air purifier. You can also use our interactive Filter Finder tool at the top of the page.