Product Description

The Airpura C700 is the higher-airflow model in Airpura's chemical and gas abatement line: a 26 lb activated carbon bed with 570 sq in of surface area, moved by a 635 CFM (free flow) fan. Per Airpura, it is rated for spaces up to 2,500 sq ft. Like the rest of the C-series, it is carbon-first by design — built for rooms where the problem is gases, VOCs, and odors rather than dust.

Who It's For

  • Larger homes and open-plan spaces up to 2,500 sq ft, per Airpura's rating at 8 ft ceilings and 2 air changes per hour
  • Homes near industrial facilities or other outdoor chemical sources, a use Airpura calls out for the C-series
  • Buildings mid-renovation or newly furnished, where off-gassing continues for months
  • Workspaces with routine chemical use — salons, studios, and workshops
  • Buyers who want more gas-phase capacity than a combined carbon + HEPA unit can carry

Key Features

  • 26 lb activated carbon bed — 100% coconut shell carbon with 570 sq in of surface area, per Airpura; Airpura also offers specially blended carbons targeted at specific chemicals
  • Optional impregnated carbon — potassium iodide blend available for faster removal of certain chemicals, per Airpura
  • 635 CFM free-flow airflow (450 CFM with filters installed, per Airpura's performance sheet) with 360-degree intake
  • HEPA-barrier post filter — captures 95% of airborne particles at 1 micron and larger per Airpura, and traps carbon dust downstream of the bed
  • Vacuumable poly prefilter, variable-speed fan, powder-coated steel housing on casters
  • Filtration only — no ozone-producing technology; per Airpura, zero ozone emissions

How the Filtration Works

Air is drawn in 360 degrees around the base and passes through three stages:

  1. Poly prefilter catches dust, lint, and hair before they reach the carbon.
  2. 26 lb activated carbon bed adsorbs gas-phase pollutants — VOCs, chemical fumes, and odor compounds — as air dwells in the deep bed.
  3. HEPA-barrier post filter captures 95% of particles at 1 micron and larger per Airpura, including carbon dust.

The trade-off is deliberate: carbon mass over fine-particle efficiency. If fine particles are your main concern, Airpura's V-series (True or Super HEPA) is the better match.

Specifications

Coverage (per Airpura) Up to 2,500 sq ft (8 ft ceilings, 2 air changes per hour)
Airflow 635 CFM free flow; 450 CFM with filters, per Airpura
Carbon bed 26 lb activated carbon, 100% coconut shell; 570 sq in surface area (optional potassium iodide blend)
Particle filter HEPA-barrier — 95% of particles ≥ 1 micron per Airpura
Prefilter Poly prefilter, vacuumable
Filter life (per Airpura) Prefilter ~12 months; carbon ~24 months; HEPA-barrier ~12 months
Sound level (per Airpura) 30.2 dB on low (at 6 ft); 63.0 dB on high
Power draw (per Airpura) 40 W low / 120 W high; 115V outlet
Dimensions / weight 23 in. H x 15 in. W; 45 lb
Housing Powder-coated steel, on casters
Ozone emissions None, per Airpura
Warranty 5 years parts / 10 years labor, per Airpura

C600 vs C700 vs C700 DLX

All three C-series models carry a 26 lb carbon bed; airflow, coverage, and carbon configuration set them apart:

  • Airpura C600 — 560 CFM, rated 2,000 sq ft, 26 lb coconut shell carbon in a 3 in. bed
  • C700 (this model) — 635 CFM, rated 2,500 sq ft, 26 lb carbon bed for larger spaces
  • Airpura C700 DLX — 635 CFM, rated 2,500 sq ft, with Airpura's enhanced impregnated carbon configuration and a German carbon option for odor-sensitive users

Dealing with wildfire smoke, where fine particles matter alongside odor? Compare the Airpura V700. For a guided pick, see Which Airpura Is Right for You or browse the Airpura collection.

Filter Replacements

Per Airpura, replace the poly prefilter about every 12 months, the carbon bed about every 24 months, and the HEPA-barrier about every 12 months — sooner under sustained chemical load. The C-series replacement filter bundle covers the stack, and the poly prefilter pack (600/700 series) fits the C700.

Warranty & Support

Airpura backs the C700 with a 5-year parts and 10-year labor warranty for residential use, per Airpura's published terms. OffGrid Horizon is a family-owned authorized Airpura dealer — call (302) 496-3554 to discuss carbon blends for your specific chemical concern. You can also download the C700 user guide.

Frequently Asked Questions

Why choose the C700 over a carbon + True HEPA unit?

Filter volume. The C700 dedicates 26 lb to carbon — versus 18 lb in Airpura's V-series — which means more adsorption capacity and longer dwell time for gases, VOCs, and odors. The cost is particle efficiency: its HEPA-barrier captures 95% at 1 micron per Airpura, not the 99.97% at 0.3 microns of a True HEPA.

How can I tell when the carbon bed is saturated?

Breakthrough odor is the signal: smells the unit had been removing come back, or outlet air picks up a faint odor of what the bed has collected. Airpura's guideline is about 24 months of typical use; heavy continuous exposure shortens it.

What chemical and VOC sources does a home typically have?

Paints, stains, and adhesives; new furniture, cabinetry, carpet, and flooring off-gassing; cleaning products and air fresheners; salon, hobby, and workshop chemicals; and fuel or solvent storage in attached garages. Sustained sources like these are what a deep carbon bed is designed to work against.

What does the C700 cost to run? (estimate)

Per Airpura's performance sheet, draw is about 40 watts on low and 120 watts on high. At roughly $0.17 per kWh, running 24/7 costs approximately $0.16 per day on low and $0.49 per day on high. Estimate only — your electric rate will vary.

How loud is it?

Per Airpura, 30.2 dB on low measured at 6 ft, and 63.0 dB at the full 635 CFM high setting.

Can I customize the carbon for a specific chemical?

Yes — per Airpura, specially blended carbons are available for specific chemicals, including a potassium iodide impregnated option. If you know the compound you are targeting, call us and we will check the right blend with Airpura; the C700 DLX formalizes several of these options.

Targeting a specific gas or odor problem? Call the OffGrid Horizon family at (302) 496-3554 — we can match the carbon configuration to the job, or point you elsewhere in the Airpura collection if the C700 is not the right fit.

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