ProductsSupport

Healthy lifestyles start here. Sign up and get exclusive offers

2 year warranty

All series

  • Breathe the difference
  • Turntable image 1Turntable image 2Turntable image 3Turntable image 4Turntable image 5Turntable image 6Turntable image 7Turntable image 8Turntable image 9Turntable image 10Turntable image 11Turntable image 12Turntable image 13Turntable image 14Turntable image 15Turntable image 16Turntable image 17Turntable image 18Turntable image 19Turntable image 20Turntable image 21Turntable image 22Turntable image 23Turntable image 24Turntable image 25Turntable image 26Turntable image 27Turntable image 28Turntable image 29Turntable image 30Turntable image 31Turntable image 32Turntable image 33Turntable image 34Turntable image 35Turntable image 36Turntable image 37Turntable image 38Turntable image 39Turntable image 40Turntable image 41Turntable image 42Turntable image 43Turntable image 44Turntable image 45Turntable image 46Turntable image 47Turntable image 48Turntable image 49Turntable image 50Turntable image 51Turntable image 52Turntable image 53Turntable image 54Turntable image 55Turntable image 56Turntable image 57Turntable image 58Turntable image 59Turntable image 60Turntable image 61Turntable image 62Turntable image 63Turntable image 64Turntable image 65Turntable image 66Turntable image 67Turntable image 68Turntable image 69Turntable image 70Turntable image 71Turntable image 72
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Turntable image 1Turntable image 2Turntable image 3Turntable image 4Turntable image 5Turntable image 6Turntable image 7Turntable image 8Turntable image 9Turntable image 10Turntable image 11Turntable image 12Turntable image 13Turntable image 14Turntable image 15Turntable image 16Turntable image 17Turntable image 18Turntable image 19Turntable image 20Turntable image 21Turntable image 22Turntable image 23Turntable image 24Turntable image 25Turntable image 26Turntable image 27Turntable image 28Turntable image 29Turntable image 30Turntable image 31Turntable image 32Turntable image 33Turntable image 34Turntable image 35Turntable image 36Turntable image 37Turntable image 38Turntable image 39Turntable image 40Turntable image 41Turntable image 42Turntable image 43Turntable image 44Turntable image 45Turntable image 46Turntable image 47Turntable image 48Turntable image 49Turntable image 50Turntable image 51Turntable image 52Turntable image 53Turntable image 54Turntable image 55Turntable image 56Turntable image 57Turntable image 58Turntable image 59Turntable image 60Turntable image 61Turntable image 62Turntable image 63Turntable image 64Turntable image 65Turntable image 66Turntable image 67Turntable image 68Turntable image 69Turntable image 70Turntable image 71Turntable image 72
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference
  • Breathe the difference

Discontinued

Series 30002-in-1 air purifier and humidifier

AC3821/20

5
| (2) Reviews | 100% recommend this product
Breathe the difference
Visualize your air improvement with digital feedback. This 2-in-1 purifier and humidifier balances its two functions to perform in rooms up to 80 m2 against allergens, dry air discomfort, harmful gases, particles, bacteria & viruses.
See all benefits

Remove 99.97% allergens and dry air discomfort

Breathe the difference

  • Remove 99.97% particles@3nm

  • Air quality & humidity display

  • Up to 80 m2/861 ft2

  • Auto, Sleep mode & app

Removes 99.97% of particles as small as 0.003 microns

Removes 99.97% of particles as small as 0.003 microns

Cutting-edge VitaShield IPS purification technology is proven to reduce 99.97% ultra-fine particles as small as 0.003 microns (800 times smaller than PM2.5), including viruses, bacteria, pollen, dust, and pet dander. It provides superior particle clean-air delivery rate (CADR) of 310 m3/h. In a room of 20 m2, it can purify the air in less than 10 minutes, so the air gets cleaned more than 6.5 times an hour.

Hygienic humidification up to 600 ml/h

NanoCloud technology uses a natural and hygienic evaporation process to ensure superior performance up to 600 ml/h. Once the water is evaporated, the water mist becomes invisible and the smaller molecules are less able to carry bacteria into the air. Our laboratory testing confirms that NanoCloud technology spreads 99% less bacteria than leading ultrasonic humidifiers. It also prevents wet spots and white dust.

Removes bacteria & viruses

Removes bacteria & viruses

Optimized purification function effectively detects and reduces bacteria and viruses, such as H1N1 (influenza), for cleaner air and a healthier home.

Technical Specifications

Get support for this product

Find FAQs, user manuals, safety information and tips

Reviews

These reviews are managed by Bazaarvoice and comply with the Bazaarvoice Authenticity Policy, which is supported by anti-fraud technology and human analysis. Details may be found at
Customer opinions in the form of product and star ratings are useful for all customers. They allow you to learn more about the product and help you make a purchase decision. Any customer who has purchased a product online or in store can submit a review

5.0

of 5

2

Reviews

100%

recommend this product

4
3
2
1

01/11/2020

India

India

Air filter with humidity control

Excellent product with features. Philips should make it available in India.

Pros

Humidity control

Cons

Availability of spares on time

Yes, I recommend this product

This review was made for Series 3000 AC3821/20 2-in-1 air purifier and humidifier

Yes, I recommend this product

This review was made for Series 3000 AC3821/20 2-in-1 air purifier and humidifier

22/11/2018

India

India

A GREAT 2 IN ONE PRODUCT

Nice product from Philips. after conducting some research I zeroed in on 2 products : Dyson desktop and this model from philips. However, finally I decided on philips as this one had a humidifier function too which is very useful in dry climate. This purifier gives you live pm 2.5 status and I have observed the reading going down from over 100 to less than 10 with shut doors and windows. But as with all purifiers, one has to keep the rooms airtight otherwise the effectiveness of the filter reduces. The water tank is huge and lasts for the whole night in 60% RH mode which is very comfortable for the body.

Yes, I recommend this product

This review was made for Series 3000 AC3821/20 2-in-1 air purifier and humidifier

Yes, I recommend this product

This review was made for Series 3000 AC3821/20 2-in-1 air purifier and humidifier

Sign up to the Philips newsletter for exclusive offers

  • VIP exclusive access to sales​​
  • Early Bird previews of our latest healthy lifestyle innovations​
  • Tailored healthy lifestyle advice and tips
  • Expert tips and inspiration

I would like to receive promotional communications – based on my preferences and behaviour – about Philips products, services, events and promotions. I can easily unsubscribe at any time!

  • VIP exclusive access to sales​​
  • Early Bird previews of our latest healthy lifestyle innovations​
  • Tailored healthy lifestyle advice and tips
  • Expert tips and inspiration
Disclaimers

  1. CADR: tested by third party according to GB/T 18801-2015

  2. Room size: Calculated according to GB/T18801-2015.

  3. Humidification rate: Tested by GB/T 23332 in Philips internal climate chamber, 2017. Chamber size 25m2, initial temperature of 20±2°C and relative humidity of 30±3%RH.

  4. Tested on the filter media with NaCl aerosol, classified at 3nm according to DIN71460-1, in 2017 by third party test lab.

  5. Tested on the filter media with 1 pass efficiency at 5.33cm/s airflow, in 2017 by third party test lab.

  6. Reduce bacteria: Tested by Shanghai Institute of Measurement and Testing Technology (SIMT) in 30m3 chamber according to GB21551.3-2010, (Staphylococcus albsp) 8032 as testing bacteria

  7. Microbial Reduction Rate Test conducted at Airmid Healthgroup Ltd. tested in a 28.5m3 test chamber contaminated with airborne influenza A(H1N1).

  8. Generates nano-sized water molecules, prevents spreading bacteria, Results are based on emission of the bacterium Staphylococcus Albus(a simulant for a relevant pathogen) directly from clean units and clean wick filters, using sterilized water spiked with said bacterium.

  9. Measurements were conducted after 20g was released from the units into a sealed 30 m3 chamber.Bacteria introduction into the air in the room depends on many factors such as room size or configuration.

  10. Prevent spreading white dust or wet spots: Independent third-party test Determination of deposition of minerals from liquid droplets on furniture, according to DIN 44973, IUTA e.V. To determine mineral deposits onto furniture from airborne liquid droplets over a period of 3 hours.

  11. Professional grade sensor: Benchmark with Grim sensor and comparison with industry infra-red sensor.