We supply ready-to-buy options that keep indoor air cleaner and make shopping simple by model and grade. Our catalogue serves Singapore customers who want a fast, reliable match for their unit.
We list compatible goods across the Sterra range, showing current price and configuration for each product. That means you can see 2‑in‑1 or 3‑in‑1 options at a glance and add the correct item to cart with minimal fuss.
Timely swapping matters. When a cartridge loads up, airflow and capture efficiency fall, so changing it keeps your air purifier working as intended. For practical guidance and HEPA benefits, consult our quick choosing guide and stock details.
Shop our catalogue to check availability, prices and delivery. We prioritise selection, compatibility and ordering confidence so you can buy with certainty.
Air purifier filter replacement options we stock in Singapore
Browse our Singapore stock by Sterra model to find the exact component you need. We show live availability so you can proceed with confidence.

In stock (9) for each listed model unless noted otherwise. Below are model-specific prices as shown on our page.
Sterra Mars™ True HEPA-13 (3-in-1)
In stock. A compact 3-in-1 option suited to everyday use.
Sterra Moon™ True HEPA-13 (3-in-1)
In stock. Good value for higher capture performance.
Sterra Breeze™ True HEPA-13 (3-in-1)
In stock. Balanced performance and longevity.
| Model | Specification |
|---|---|
| Sterra Nova™ HEPA-13 | 3-in-1 |
| Sterra Nova™ HEPA-11 | 2-in-1 |
| Sterra Breeze Pro™ HEPA-14 | High-grade capture |
| Sterra Paws™ HEPA-14 | Pet-focused |
| Sterra Sun™ HEPA-11 | 2-in-1, variant pricing |
Note: prices reflect on-page displays and variant options. We keep names exact to help you choose the right product for your unit.
How we help you choose the right replacement filter for your purifier
We start by confirming model compatibility so you only view parts that fit your unit. From there, we explain grade and layer design so you can make a confident choice.

HEPA grades explained for everyday indoor air
HEPA grades vary by particle capture. Higher-grade HEPA captures finer dust, haze and allergens more effectively. For everyday indoor air concerns, HEPA‑13 and above offer measurable gains.
If particles are your main worry, prioritise grade first. That keeps performance high and reduces how often you need a replacement.
Multi-layer filtration for odours and gases, including HEPA + HESA insights
Multi-layer designs combine particle capture with gas and odour control. A common approach pairs HEPA with selective adsorption layers.
HESA (High Efficiency Selective Absorption) is an example. Used in the Philips SelectFilter Plus concept, it adds treated carbon with selective additives to target VOCs such as toluene and formaldehyde, plus exhaust fumes and chemicals from plastics.
Philips summarises the benefit plainly: more targeted gas capture than standard activated carbon, faster absorption and higher capacity, and a lower chance of re‑emission when saturated.
When to replace your filter for best performance
As a guide, change cartridges every three to six months under normal conditions. Replace sooner if you have heavy loads—smoke, pets, renovation dust or dense urban traffic exposure.
Consider ongoing cost and price per change. If you expect frequent swaps, choose options that balance grade and running cost so ownership stays affordable.
What to expect when you order replacement filters from us
Some items ship from separate warehouses; we explain how that affects your cart and next steps.
Special handling and split-warehouse fulfilment: what it means for your cart
This is a special handling product and might be fulfilled from a different warehouse. In case there are other items in your cart which are not available in this warehouse they might not be allowed in the same order. Do you still want to continue?
We set clear expectations at checkout so you can place an order smoothly. If the system blocks mixed-warehouse items, complete the filter order first and place a separate order for other products.
Why this happens: split-warehouse rules let us send the correct product quickly from the location that stocks it. This is an operational choice, not a quality issue.
- Check model and quantity before paying to avoid incorrect orders.
- The final price shown at checkout reflects chosen options and totals.
- If you need help, contact us and we will advise on the best way to finish your purchase.
Conclusion
Conclusion
Choosing the correct part keeps your Sterra unit working at peak performance and supports cleaner indoor conditions across Singapore homes and offices.
Match your model, select the grade and layers you need, and plan swaps on a sensible schedule to maintain consistent results. Confirm the listed price on the product page before checkout so there are no surprises.
Acting promptly is usually more cost-effective than running an overloaded cartridge that reduces airflow and capture efficiency. Add the correct item to cart, watch for any special handling prompts, and complete your order to restore full unit performance.
Shop now to keep performance steady and breathing easier indoors.
