Name: Dreo MC710S Air Purifier Tower Fan, 45" 2-in-1 Smart Fan for Bedroom, 27ft/s Velocity, 120°Oscillation, 24H Timer Bladeless Fans for Home, 25dB Low...
Brand: Dreo
SKU: B0CRVG6JMB
Price: 296.98 USD
Availability: InStock
Rating: 4.6 (272 reviews)

Our Verdict

Shark HC451 Wins

Shark HC451 3-in-1 Clean Sense Air Purifier, Heater & Fan, HEPA Filter, 500 Sq Ft, Oscillating, Small Room, Bedroom, Office, Captures 99.98% of Particles for Clean Air, Dust, Smoke & Allergens, Black - High-End Air Purifiers

It provides verifiable CADR (66.67 smoke) and 104 sq ft coverage for purification. Choose Dreo for powerful 27ft/s airflow and ultra-quiet 25dB fan operation.

$350Buy on Amazon

Bottom Line: Shark HC451 is the better choice. It provides verifiable CADR (66.

Key Differences

The most significant spec differences at a glance

Cadr Smoke

100% less

66.67

Coverage Sq Ft

100% less

104.17

Advantages

Where each product wins

Shark

Cadr Smoke: 100% higher (0 vs 66.67)
Coverage Sq Ft: 100% higher (0 vs 104.17)

Who Should Buy Which?

Find the right product for your needs

Buy Dreo if...

Dreo MC710S Air Purifier

If you prioritize powerful, long-distance airflow and exceptionally quiet operation above all else, the Dreo MC710S is your ideal choice. It delivers an impressive 27ft/s velocity, reaching 40 ft, while operating at a mere 25dB. Perfect for a bedroom or open-plan living space where a strong, quiet fan with smart controls (app, Alexa) and True HEPA filtration is desired, even without specific CADR ratings. You value independent fan and purification motor control and remote access for ultimate convenience.

Buy Shark if...

Shark HC451 3-in-1 Clean

The Shark HC451 is perfect for those seeking a compact, multi-functional device to purify, heat, and cool a small room. If you need verifiable air purification (66.67 smoke CADR, 104 sq ft coverage) alongside seasonal temperature control, this 3-in-1 unit is your match. Ideal for a small bedroom or office where Clean Sense IQ auto-adjusts purification, and quiet operation with dimmable lights are key considerations for comfort throughout the year, maximizing utility in limited space.

Spec Comparison

7 specs compared

Specification	Dreo MC710S Air Purifier	Shark HC451 3-in-1 Clean
Price	$297	$350
Rating	4.6(272)	4.3(355)
Cadr Smoke	0	66.67
Coverage Sq Ft	0	104.17
Noise Level db Min	25 dB	—
Filter Type	True HEPA	Nanoseal HEPA
Smart Sensor	Yes	Yes
WiFi	Yes	—
Model Number	—	HC451

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Pros & Cons

Quick overview of strengths and weaknesses

Dreo MC710S Air

Pros

Independent fan and purification motor control.
Generates 27ft/s airflow, reaching 40 ft distance.
True HEPA filtration captures 99.9% of 0.3µm particles.
Low noise output, operates quietly at 25dB.

Cons

No CADR rating for purification efficiency.
Requires regular replacement of HEPA filters.
Specific room coverage (sq ft) not clearly stated.

Shark HC451 3-in-1

Pros

Purifies air, heats rooms, and provides fan cooling.
Nanoseal filter captures 99.98% of airborne particles.
Clean Sense IQ auto-adjusts purification power.
Operates quietly with dimmable lights for sleep.

Cons

Effective purification covers only 104 sq ft.
Low CADR of 67 for smoke limits purification speed.
Requires periodic filter replacements, adds cost.

Frequently Asked Questions

Common questions about this comparison

Which is better for a small bedroom?

The Shark HC451 is better for a small bedroom (104 sq ft) due to its 3-in-1 functionality including heating, cooling, and air purification with stated coverage and CADR. The Dreo focuses more on powerful airflow.

What's the main difference in air purification capability?

The Shark HC451 provides a specific smoke CADR of 66.67 and covers 104 sq ft. The Dreo MC710S uses True HEPA filtration but does not provide specific CADR or coverage ratings for its purification efficiency.

Is the price difference worth it?

The Shark HC451 is slightly more expensive, but it offers 3-in-1 functionality (purifier, heater, fan) which the Dreo lacks. If you need heating in addition to purification and cooling for a small space, the Shark's extra cost is justified.

Which fan is quieter?

The Dreo MC710S specifies a very low noise output of 25dB. While the Shark HC451 also claims quiet operation, a specific decibel level is not provided in its specifications, making the Dreo explicitly quieter.