Philips Air Purifier Smart 600i Series vs Philips Air Purifier 600 Series

By the Clean Air Lab editorial team · Updated 2026 · How we test & score

We compare the Philips Air Purifier Smart 600i Series and the Philips Air Purifier 600 Series across every dimension that matters - our scores, the key specs, and how each performs on the things you will actually notice day to day.

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At a glance

Philips Air Purifier Smart 600i SeriesPhilips Air Purifier 600 Series
Our score8.0/107.8/10
Best forMedium to large rooms up to 44 m² with allergy, dust and odour concernsMedium to large rooms up to 39 m² with allergy, dust and odour concerns
Not ideal forBuyers on the tightest budgetBuyers on the tightest budget
BrandPhilipsPhilips

Specifications compared

Philips Air Purifier Smart 600i SeriesPhilips Air Purifier 600 Series
CADR170 m³/h170 m³/h Room cleaning
Coverage44 m²39 m² Verified
Sleep noise19 dB(A)19 dB(A) Sleep mode

Design and Build Quality

Philips Air Purifier Smart 600i Series

This air purifier/10 Smart 600i has a compact, slim housing designed to fit into smaller spaces, with dimensions of 24.3 x 23.7 x 34.1 cm (D x W x H) and a weight of 2.2 kg. In this review, the build appears straightforward and sturdy, with a white finish intended to suit most rooms. The digital display includes a dimmable light, which helps during bedtime. Setup is simple, and the light footprint makes it easier to place on shelves or floors. The narrow body may, however, limit desk-height placement options in tighter layouts.

Philips Air Purifier 600 Series

A compact footprint and a clean, simple look help the Philips/20 fit into most home spaces, and that matters because it is intended for everyday room use rather than a single "living area" setup. The dimensions are 24.3 x 34.1 x 23.7 cm (D x W x H), and the unit has a silk beige finish designed to blend with common decor. Build quality feels solid for daily handling, and the control area and dimmable display are positioned for low-disturbance use in sleep mode at 19 dB. Integration with the air purifier+ app adds convenience.

CADR and Room Coverage

Philips Air Purifier Smart 600i Series

CADR and room coverage are central to how well the Philips/10 Smart 600i can clean a space. It is rated for rooms up to 44 m² with a CADR of 170 m³/h. That CADR indicates the purifier can exchange around 170 cubic metres of air each hour, which supports faster cleaning when pollutants are airborne. The 44 m² limit also signals weaker suitability for larger open-plan areas, where more units may be needed.

Philips Air Purifier 600 Series

With a CADR of 170 m³/h, the Philips/20 is built to move and clean air at a fairly steady pace, making it suitable for day-to-day room use. The manufacturer states it can thoroughly purify rooms up to 39 m². For typical UK rooms around this size, the airflow supports quicker cleaning by circulating air continuously, while larger open-plan spaces may require closer placement to the main air flow source.

HEPA Filtration Performance

Philips Air Purifier Smart 600i Series

Because this model is built around HEPA filtration, its performance depends on how effectively it traps fine airborne particles in everyday indoor air. The HEPA H13 filter is designed to remove PM2.5, pollen, dust, viruses and other contaminants. The air purifier states it can achieve 99.97% particle removal at 0.003 microns, targeting very small airborne matter. The unit also uses an electrostatic charge to attract particles, so filtration effectiveness depends on airflow through the purifier. Coverage is limited to up to 44 m², so larger spaces may require additional support.

Philips Air Purifier 600 Series

HEPA filtration performance on the air purifier/20 is built around a HEPA H13 filter designed to capture fine airborne particles, including dust, PM2.5, pollen, viruses and other pollutants. The unit is described as removing up to 99.97% of particles at 0.003 microns, using an electrostatic charge to attract captured contaminants. With a CADR of 170 m³/h, the airflow supports efficient circulation through the filter, which helps the purifier's performance align with its intended 39 m² coverage area. Performance depends on how effectively air is drawn through the unit during use, so particle exposure can vary.

Noise Level and Sleep Mode

Philips Air Purifier Smart 600i Series

Noise often determines whether an air purifier is run throughout the day and night, so it is worth considering how the Philips/10 performs in quiet use. In sleep mode, the air purifier runs at 19 dB(A), described as quieter than a whisper. This level suits bedroom use at night, with the digital display light dimmed. For everyday operation, noise can increase when the fan speed rises, which is noted as a trade-off for the Philips AC0650.

Philips Air Purifier 600 Series

The Philips AC0650/20 is designed to run quietly, making it a relevant consideration for bedrooms, nurseries and open-plan living. In sleep mode, the Philips operates at 19 dB(A), which is stated as quieter than a whisper. During sleep mode, the unit also dims its digital display light to reduce visual distraction at night. Only the sleep-mode noise level is specified, so sound levels at higher fan speeds are not defined.

Smart Features and App Control

Philips Air Purifier Smart 600i Series

The Philips/10 Smart 600i series can be controlled via the air purifier+ app, which supports on-the-go use from another room. The app allows users to switch the purifier on or off, adjust fan speed settings, and access in-app articles about air purification. It also provides monitoring, including filter status, to help users plan maintenance based on the device's prompts. For buyers comparing options, the Philips listing on Amazon UK highlights this connected control. A minor downside is that the smart functions rely on access to the app.

Philips Air Purifier 600 Series

In day-to-day use, low-noise sleep operation matters, but the air purifier/20 also offers smart control through the Philips+ app. The app can be used to turn the unit on or off, adjust speed settings, and view support information including filter status. This kind of remote control is useful in households where the air purifier is placed in another room. For anyone buying the air purifier from Amazon UK, it is worth checking whether a phone platform is compatible. Setup is described as commonly straightforward, yet app-only control depends on Wi-Fi reliability.

Filter Life and Cost

Philips Air Purifier Smart 600i Series

Filter life and running cost depend on how often the purifier is used and how much pollution is removed while it operates at different fan speeds. For the air purifier, the app can monitor filter status, helping decide when replacement is actually needed. Running the purifier more often typically increases filter wear, so costs rise, particularly when higher fan speeds are used to clean a room quickly (CADR 170 m³/h, 44 m²). This air purifier price is therefore only one part of the total cost.

Philips Air Purifier 600 Series

Filter life and running costs for this air purifier/20 vary depending on how long the unit runs and how much dust or other particles are in the room. The manufacturer states that users can monitor filter status via the Philips+ app. With the HEPA H13 filter, replacement is the main ongoing cost. Running the purifier at suitable speeds rather than at maximum can help reduce how often the filter needs replacing. The Philips AC0650/20 600 series price varies by retailer, so the total cost should be checked where it is purchased.

Energy Use

Philips Air Purifier Smart 600i Series

Energy use for the Philips is designed to keep power draw low, with a maximum consumption of 12 watts while cleaning the air. This means day-to-day electricity use depends on how many hours the purifier runs and which fan speed is used. Energy efficiency is supported by Energy Star certification, though the actual running cost is not provided.

Philips Air Purifier 600 Series

Usually, the air purifier/20 keeps energy use fairly low because it runs at a maximum of 12 watts when operating at its highest setting. For everyday use it can run at lower speeds, so power consumption should drop. The sleep mode is designed for quiet nights, and it still operates with the same efficiency focus, without any extra features mentioned that would increase consumption. Using the app to switch speeds and turn it off can also help reduce wasteful runtime.

Cleaning and Maintenance

Philips Air Purifier Smart 600i Series

Cleaning and maintenance are straightforward, but they depend on how often the purifier runs and what pollutants are present in the room. In the Philips AC0650 purifier review of the AC0650/10, upkeep mainly involves checking the filter status in the air purifier+ app, then replacing the HEPA H13 filter when the app indicates. Before cleaning, the unit should be unplugged and the exterior wiped with a soft, dry cloth, and the vents should be kept clear. Since it is designed to target particles such as PM2.5, pollen, and dust, environments with heavier indoor pollution may require more frequent attention.

Philips Air Purifier 600 Series

Cleaning and maintenance for this air purifier/20 are fairly simple, but regular checks are still needed to keep performance steady. The Philips/20 600 series relies on a HEPA filter and a pre-filter, so attention to these components helps maintain effective filtration. The owner can check the air purifier+ app for filter status, then switch the unit off before wiping the outer housing with a dry, soft cloth. Dust buildup around the air inlets should also be inspected. If the display signals that the filter needs attention, the filter can be replaced as prompted.

Who Is This Air Purifier For?

Philips Air Purifier Smart 600i Series

This air purifier/10 Smart 600i air purifier suits people who want cleaner indoor air in smaller rooms, as it is rated to thoroughly clean areas up to 44 m² with a CADR of 170 m³/h. It is designed for everyday airborne particles, including PM2.5, pollen, dust, viruses and other pollutants. Its compact, slim design targets individual rooms rather than whole homes, making it a fit for households that do not need a larger-capacity unit. It also suits users who prefer app control via The Philips+ and quieter sleep-mode operation at 19 dB(A).

Philips Air Purifier 600 Series

The Philips suits people who want a compact unit designed to clean typical UK-sized rooms, particularly spaces up to 39 m², with a CADR of 170 m³/h. It is aimed at households concerned about pollutants including PM2.5, pollen, dust, and other airborne contaminants, as well as viruses, using a HEPA H13 approach. The air purifier versus larger tower-style models comparison often comes down to available space, since this unit is slim enough for smaller rooms. It is also a good fit for anyone who wants app control via The Philips AC0650+, and for those monitoring noise, with a sleep mode reading of 19 dB(A).

Philips Air Purifier Smart 600i Series: pros

  • Strong airflow - CADR of 170 m³/h for rooms up to 44 m²
  • HEPA filtration
  • Quiet operation (19 dB(A))
  • Smart-home and app control (Smart Home Compatible)
  • Independently certified (Energy Star)

Cons

  • Filter replacement intervals not stated by the manufacturer

Philips Air Purifier 600 Series: pros

  • Strong airflow - CADR of 170 m³/h for rooms up to 39 m²
  • HEPA filtration
  • Quiet operation (19 dB)
  • Smart-home and app control (Smart Home Compatible)
  • Independently certified (HEPA)

Cons

  • Filter replacement intervals not stated by the manufacturer

Our verdict

Our pick is the Philips Air Purifier Smart 600i Series (our score 8.0/10) - A capable multi-stage air purifier with a CADR of 170 m³/h, held back mainly by a few practical limitations. The Philips Air Purifier 600 Series is still worth it if it is cheaper when you check, or if it better matches your specific needs.