Description
Five Years Before You Buy a Filter.
That's the Number That Actually Matters.
A purifier built for the way Delhi actually needs one — used every day, for years · an electrostatic filter rated for up to 5 years, not a HEPA cartridge you replace every season · removes 99.97% of particles as small as PM0.3 · covers up to 1076 sq ft · HushJet air projection, engineered with aerospace acoustics to suppress turbulence and cut noise · a fully sealed body so what goes in doesn't leak back out · advanced automatic sensing that cross-checks the air every second · Auto and Night modes · MyDyson app control for remote operation, live air quality and timers · compact at 23 × 23 × 47 cm and 3.15 kg · made in India · 2 year warranty
5 years
not 5
monthsdo this sum before you buy
Almost every air purifier sold in Delhi uses a HEPA filter, and almost nobody works out what that costs before buying. A HEPA filter is a dense paper mesh that traps particles by physically catching them — which means it clogs as it works, and in Delhi's air it clogs fast. Most need replacing every six to twelve months, and a genuine replacement cartridge is rarely cheap. Over five years, on a machine costing well under thirty thousand rupees, you can easily spend more on filters than you did on the purifier. This one uses an electrostatic filter instead, rated for up to five years. Rather than straining particles out through a mesh, it charges them so they are attracted to and held on the collecting surface — so it doesn't clog and choke in the same way. When you compare purifiers, ask what the filter costs and how often it needs changing before you compare the machines. It usually changes the answer.
HushJet — because a purifier you switch off at night isn't purifying anything
Here is the pattern almost every purifier owner in Delhi falls into. Air quality is worst in winter, when it is cold, the windows are shut and the pollution settles. That is exactly when you most want the machine running through the night in the bedroom — and exactly when a noisy one gets switched off at eleven o'clock because nobody can sleep through it. The machine then spends the eight hours you spend breathing in one sealed room doing nothing at all. Dyson's engineers approached this as an acoustics problem rather than a fan problem, shaping the airflow channels to suppress the turbulence that actually generates the noise, using techniques borrowed from aerospace. Combined with a dedicated Night mode that runs quietly with the display dimmed, the point is simple: a purifier's real-world performance is not its lab rating, it is how many hours you actually leave it on.
Fully sealed — the difference between filtering air and moving it around
This is the specification nobody checks and it matters more than the filter grade. A purifier works by pulling air in, pushing it through a filter and blowing it back out — which means the whole machine is under pressure while it runs. If the body has gaps around the filter housing or the seams, some air takes the easy route and bypasses the filter entirely, or worse, picks up what was already collected and carries it back out. You can have an excellent filter in a leaky machine and be doing very little. Dyson seals these machines throughout, so the air that leaves has genuinely been through the filter rather than around it. The 99.97% figure only means anything in a sealed body — and when you are comparing this against cheaper purifiers quoting similar percentages, that is the question worth asking about each one.
🎯 Right for
At 3.15 kg it moves between rooms easily — bedroom at night, living room by day. The 1076 sq ft figure is a maximum coverage rating; a purifier in a smaller room clears it faster and runs at a lower speed, which is quieter. Tell us your room size and we'll tell you honestly whether one machine is enough.
Analyses the air continuously, cross-checking every second, and adjusts itself. Auto mode means you're not guessing when to turn it up.
Control fan speed and modes, watch live air quality and set timers from your phone — including starting it before you get home.
Runs quietly with the display dimmed. The mode that decides whether the machine actually works the eight hours it matters most.
A square less than a foot across and 47 cm tall — it sits beside a bed or in a corner without dominating the room.
| Brand / Model | Dyson HushJet Purifier Compact — HJ10 (also referenced as SP01 in supplier material) ✅ |
| Type | Air purifier ✅ |
| Filtration | Removes 99.97% of particles as small as PM0.3 ✅ |
| Filter Type | Electrostatic ✅ |
| Filter Life | Up to 5 years ✅ |
| Maximum Coverage | Up to 1076 sq ft ✅ |
| Air Projection | Dyson HushJet — airflow channels engineered to suppress turbulence and reduce noise ✅ |
| Sealing | Fully sealed machine ✅ |
| Sensing | Advanced automatic sensing, air analysed and cross-checked every second ✅ |
| Modes | Auto and Night ✅ |
| Connectivity | MyDyson app — remote control, air quality monitoring, timers ✅ |
| Dimensions | 23 × 23 × 47 cm ✅ |
| Weight | 3.15 kg ✅ |
| Colour | Black / Teal ✅ |
| Country of Origin | Made in India ✅ |
| Warranty | 2 years, as per Dyson policy ✅ |
| Power Consumption | Not stated in supplier material — ask us if you're running it overnight and want the running cost ⚠️ |
| Noise Level (dB) | Not stated — HushJet is described qualitatively; ask us for the decibel figure if it matters ⚠️ |
| CADR | Not stated. This is the standard measure of how fast a purifier clears a room — worth asking us for before comparing against another brand ⚠️ |
| Gas / Odour Filtration | Not confirmed in the supplied specification for this model. The stated filtration is particulate to PM0.3 — if removing gases and odours specifically matters to you, please confirm with us first ⚠️ |
| In the Box | Not itemised — confirm remote, filter and accessories with us before ordering ⚠️ |
Why buy from Mahajan Electronics?
- 💬 We'll do the filter-cost sum with you honestly
- 📐 Tell us your room size, we'll say if one is enough
- 100% genuine Dyson with brand warranty
- GST invoice — save up to 18% on business purchases
- 45+ years of trust · rated 4.7 on Google
- Raja Garden · Jail Road · Dabri Mor
Ask what the filter costs. Then compare.
Dyson HushJet Purifier Compact HJ10 · 99.97% Of Particles To PM0.3 · Up To 5-Year Electrostatic Filter · Coverage To 1076 sq ft · HushJet Air Projection · Fully Sealed · Automatic Sensing · Auto & Night Modes · MyDyson App · 23 × 23 × 47 cm · 3.15 kg · Made In India · 2 Year Warranty
Warranty as per Dyson India's terms and conditions — 2 years as stated in supplier material. The scope of cover, parts and labour, exclusions, product registration and the service process are subject to brand policy and the final invoice or warranty card. Filter life of up to 5 years is a manufacturer specification and represents a maximum under their stated conditions; actual filter life depends substantially on ambient air quality, hours of operation, fan speed and adherence to the manufacturer's recommended maintenance, and will be shorter in heavily polluted environments. Filters and replacement parts are chargeable separately unless expressly included on the final invoice. The stated removal of 99.97% of particles as small as PM0.3 is a manufacturer specification measured under their own laboratory test conditions and is not a guarantee of real-world air quality in any particular room; actual performance depends on room size and shape, ceiling height, ventilation, the rate at which pollutants enter the space, whether windows and doors are closed, machine placement, fan speed and filter condition. The stated maximum coverage of 1076 sq ft is a manufacturer figure and does not indicate the time taken to clean a room of that size; clean air delivery rate (CADR) is not stated in supplier material and should be confirmed before comparison with other products. Gas and odour filtration is not confirmed in the supplied specification for this model, which states particulate filtration; this should be confirmed before purchase if required. Noise level in decibels, power consumption and itemised box contents are not stated in supplier material and should be confirmed. Country of origin is stated in supplier material as India. This product is an air purifier and is not a medical device. It is not intended to diagnose, treat, cure or prevent any disease or condition, and no health outcome is claimed or implied. It should not be used as a substitute for medical advice, treatment or ventilation, and persons with respiratory or other health conditions should consult a qualified medical practitioner. The appliance must be used on a stable surface with clear intake and outlet, kept away from water and out of reach of children, connected to a properly earthed socket, and switched off and unplugged before cleaning or filter maintenance. Image for reference only; actual serial number, manufacturing date, packaging, accessories, colour tone and specifications may vary by batch or model revision.
Please Note: The image shown is for reference purposes only. Actual product details, including the serial number and manufacturing date, may vary.
