Air Purifiers Comparison: Honeywell HPA100 vs Alen 45i

Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.

Honeywell HPA100

Honeywell HPA100

  • Brand Honeywell
  • Portable TRUE
  • Width (inch) 8.9
  • Height (inch) 13.54
  • Weight (lbs) 8.52
Alen 45i

Alen 45i

  • Brand Alen
  • Portable TRUE
  • Width (inch) 15
  • Height (inch) 25
  • Weight (lbs) 0.66

Quick Verdict: Which One Should You Choose?

Deciding between the Honeywell HPA100 and the Alen 45i depends on your available space, storage capacity goals, and everyday usage style:

Best For Maximum Capacity

Honeywell HPA100

Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.

  • Superior Volume: Easily stores bulk meats, frozen garden harvests, and family packs.
  • Cold Retention: Keeps food frozen significantly longer in power outages.
  • Energy Efficiency: Top-opening design keeps dense cold air trapped inside.
Best For Compact Spaces

Alen 45i

Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.

  • Space-Saving Footprint: Fits neatly under counters or in compact corners without intruding.
  • Upright Organization: Shelves allow you to organize and grab items without digging.
  • Everyday Convenience: Front-swing door provides quick, easy access anytime.

Specifications

Specification Honeywell HPA100 Alen 45i
Cadr (clean Air Delivery Rate)
Pollen (CFM) 100 245
Dust (CFM) 106 245
Smoke (CFM) 100 245
Physical
Height (inch) 13.54 25
Width (inch) 8.9 15
Weight (lbs) 8.52 0.66
Lenth (inch) 13.94 8.5
General
Number Of Cleaning Stages 4 5
Number Of Air Filters 1 2
Filtered Or Filterless Filtered Filtered
Noise Level — 23
Features
Others Airborne Allergen Reducer for Medium Rooms (155 sq ft) 5 Air quality colors & 800 sq. ft Space
Remove dirt, pollen, pet dander, and smoke Airborne allergens, dust, orders, pet smells, fur, bacteria, and mold spores
Timer Yes Yes
HEPA Filter Yes Yes
Portable Yes Yes

Frequently Asked Questions

The main differences center around storage capacity, form factor, and convenience. The Honeywell HPA100 provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the Alen 45i offers a compact upright design that fits into smaller spaces with convenient shelf organization.

Chest-style freezers generally excel in thermal efficiency because cold air naturally settles at the bottom and does not escape when the lid is lifted. Compact upright models have lower total kilowatt-hour usage simply due to their smaller cubic volume, making both designs efficient for their respective intended purposes.

Both products are available through official brand stores and authorized retailers with full manufacturer warranties and fast delivery options. Click the "Check Best Price" buttons in the comparison cards above to view today's latest promotions, official deals, and current availability.

Measure your available floor clearance first. If you have open space in a garage, basement, or utility room and want to freeze items in bulk, choose the Honeywell HPA100. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the Alen 45i.