LEVOIT Core 300 True HEPA Air Purifier for Home (CORE300) vs Shock Doctor Compression Knee Support Brace with Stay
What separates them
These two differ on 7 recorded specifications. The LEVOIT Core 300 True HEPA Air Purifier for Home (CORE300) is ₹7,491 dearer.
LEVOIT Core 300 True HEPA Air Purifier for Home (CORE300) vs Shock Doctor Compression Knee Support Brace with Stay
LEVOIT
LEVOIT Core 300 True HEPA Air Purifier for Home (CORE300)
₹9,990
AHAM certification is the reason to take its 240 CADR seriously where other purifiers' figures are self-declared under a looser standard -- the number has been verified by a third party.
Full details →
Shock Doctor
Shock Doctor Compression Knee Support Brace with Stay
₹2,499
Stays and hinges are not the same thing, and the distinction decides whether this is the right product.
Full details →Who the LEVOIT Core 300 True HEPA Air Purifier for Home is for
Buy it if: Anyone wanting a genuinely quiet bedroom purifier with a third-party-verified CADR.
Avoid it if: Anyone with a large living room, or anyone wanting automatic control -- there is no sensor.
Who the Shock Doctor Compression Knee Support Brace with Stay is for
Buy it if: Athletes wanting compression and mild support that fits under clothing.
Avoid it if: Anyone with a diagnosed ligament injury -- that needs a hinged brace, not stays.
Specifications, side by side
7 of 18 rows differ. Differences first.
| Specification | LEVOIT Core 300 True HEPA Air Purifier for Home | Shock Doctor Compression Knee Support Brace with Stay |
|---|---|---|
| Price | ₹9,990 | ₹2,499 |
| Clinical validation | CADR certified by AHAM, the stricter of the two common rating protocols | Not applicable -- this is an orthosis, not a measuring device |
| Connectivity | None -- no app, no Wi-Fi | None |
| Measurement range | Effective room size approximately 20 square metres | Knee circumference 12 to 22 inches across five sizes |
| Power source | Mains, 230 V, 45 W maximum | Not applicable |
| Regulatory status | BIS marked for electrical safety on the Indian 230 V variant | Not a notified medical device |
| Stated accuracy | No air quality sensor -- fan speed is set manually, not automatically | Not applicable |
| Stored readings | Filter life indicator | Not applicable |
| Warranty | 1 Year Official Brand Warranty | 1 Year Official Brand Warranty |
| Annual running cost | Roughly Rs4,300 -- Rs3,300 in filters plus about Rs1,000 of electricity at 8 hours a day | not published |
| CADR | 240 cubic metres per hour, AHAM certified | not published |
| Difference from a hinged brace | not published | Stays resist bending; hinges resist sideways movement. For ligament instability you need hinges |
| Filter | Three stage -- pre-filter, True HEPA H13, activated carbon, in one replaceable unit | not published |
| Filter replacement cost | About Rs2,200, roughly every 6 to 8 months | not published |
| Material | not published | Four-way stretch fabric with a moisture-wicking lining |
| Noise | 24 dB on the lowest speed, the quietest in this department | not published |
| Patella | not published | Open, with a supportive buttress |
| Sizing | not published | Measured 10 cm above the knee centre |
| Stays | not published | Two flexible side stays -- not hinges |
Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.
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