We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White twin window fan with dual blades, adjustable slide screens, carrying handle and safety grilles

OPTIMUS

OPTIMUS F5280 Twin Window Fan 2-Speed White 5.500x11.900in 9.3lb

SKU CH-A1CA-2NRMA MPN F5280

Twin window fan with two speeds, reversible airflow and built-in adjustable screens for easy installation

  • Product typeFans
  • HighlightsSold as 1 Each.
  • Product colorWhite
  • Overall height5.5
  • Overall width11.9
  • Product weight9.3
  • Two-speed motor delivers efficient airflow control
  • Manually reversible operation pulls fresh air in or exhausts stale air out
  • Built-in adjustable slide screens fit the window opening
  • Carrying handle and included feet simplify placement anywhere
  • Fully assembled with safety grill guarding fingers

Twin Window Fan

The Optimus F5280 is a twin window fan built for rooms that need a quick air exchange. Its two 7-inch blades move cool air in or push stale air out through manually reversible operation. The unit arrives fully assembled with adjustable slide screens and a carrying handle so it fits the opening without tools. Safety grilles cover both sides to protect fingers during use.

Thermals Noise and Power

A two-speed rain-resistant motor drives both blades at low or high airflow depending on the chosen setting. The reversible design lets occupants select intake or exhaust mode to match the temperature difference across the window. No decibel ratings or wattage figures are supplied by the manufacturer for either speed. The white finish reflects sunlight to limit heat absorption while the fan runs.

Single Deciding Specification

The critical measure is the 5.500 by 11.900 inch footprint that must match the window opening. Buyers with narrower sashes or taller frames will find the unit cannot seal properly without modification. The 9.3 lb weight is light enough for one person to lift into place using the integrated handle. Shoppers needing variable-speed control or remote operation should look elsewhere.

How it compares

Measured against everything we stock in Pedestal, Table & PC Fans, at today’s prices. Recalculated every night.

Price $38.99
Pricier than about 56% of the 302 comparable items (median $31.99).

Specifications

Product
Brand nameOptimus
Product typeFans
Product colorWhite
Size & build
Shipping weight2.68 kg
Package size279 × 127 × 25 mm

Questions about this item

How do I install the Optimus F5280 twin window fan and what step do people often miss?

Place the unit in the window opening, extend the built-in adjustable slide screens to seal the gaps, then secure the window sash down on top of the fan. The step people miss is locking the sash tightly so the screens cannot shift and air cannot leak around the edges.

What maintenance will the Optimus F5280 need over time?

Vacuum the safety grill and fan blades periodically to prevent dust build-up that reduces airflow. The 2-speed rain-resistant motor is sealed and does not require lubrication; if the motor eventually fails the entire unit is replaced as there are no user-serviceable parts inside.

What is the first limit I will hit when running the Optimus F5280 continuously?

The 2-speed motor delivers a fixed maximum airflow on its high setting, so sustained use is limited by that output ceiling. The unit cannot move more air than the high-speed rating allows, and the rain-resistant motor will eventually reach its thermal steady state, after which performance plateaus.

More in Pedestal, Table & PC Fans

Similar items