Princess 352900 Smart Air Conditioner 9000
Portable monoblocA

Princess

352900 Smart Air Conditioner 9000

Princess 352900 smart single-hose monobloc, 9,000 BTU/h (2.6 kW), R290, energy class A, with app scheduling and voice control for rooms up to 25 m2. A widely-stocked value smart portable.

£300

List price

About GBP 300 typical (RRP GBP 499.99); roughly EUR 396 at Amazon ES.

No live retailer link for this model right now.

This is a plug-in unit (no installer needed); we just have no live retailer for it right now. Compare it against models you can buy today.

Will it cool your room?

Room size (assumed)25 m² ≈ 269 sq ft
Fits a 25 m² room

This unit's cooling matches a 25 m² room. Set your room size to check the fit for your space.

Compare similar units

At a glance

Best for value-focused buyers wanting app control for a small room.

Cooling
2.6 kW
Size
Average
Noise
65 dB
Audible
Install: Plug and playPermission: No permission needed

Performance

Cooling capacity
2.6 kW · 9,000 BTU
Heating capacity
Cooling only
Room coverage
20–25 m²
SEER (cooling)
Not published
SCOP (heating)
Not published
Energy class (cooling)
A
Energy class (heating)
Not published
Annual energy (cooling)
Not published

Noise, size & features

Indoor noise
65 dB(A)louder than a dishwasher
Outdoor noise
Not published
Indoor unit
17.32 x 28.15 x 13.19 in
Outdoor unit
None
Refrigerant
R290
Wi-Fi / app
Yes
Outdoor unit needed
No

What is good

  • Affordable smart portable with app and voice control
  • R290 refrigerant and energy class A
  • 3-in-1 cooling, dehumidifying and fan with window kit

What to watch

  • Loud at 65 dB(A)
  • Modest 25 m2 coverage and tank-based dehumidification

Installation & the rules that apply

This is a portable monobloc. The most regulation-light option by far. No F-gas certified installer is needed because you never break into the refrigerant circuit, no planning permission or permit is triggered since nothing is fixed to the building, and a landlord usually cannot refuse it as there are no permanent alterations. The main constraints are the tenancy or building rules on window-kit appearance and noise nuisance to neighbours.

Installation

Plug and play

Refrigerant

R290

GeneralRenters: get written landlord consent firstReviewed June 2026Often blocks install
GermanyDenkmalschutz: visible changes to listed buildings need approvalReviewed June 2026Permit required
European UnionPortable monobloc units need no refrigerant handlingReviewed June 2026Good to know
European UnionEU energy label and SEER / SCOP for air conditionersReviewed June 2026Good to know
European UnionEnergy classes are moving to a plain A to G scaleReviewed June 2026Good to know
See full rules by region

Common questions about the Princess 352900 Smart Air Conditioner 9000

How loud is the Princess 352900 Smart Air Conditioner 9000?
65 dB(A) indoors, louder than a dishwasher.
How energy-efficient is the Princess 352900 Smart Air Conditioner 9000?
Its efficiency rating is A.
What size room does the Princess 352900 Smart Air Conditioner 9000 cool?
It is rated to cool a room 20–25 m² (2.6 kW · 9,000 BTU).
Do I need a professional to install the Princess 352900 Smart Air Conditioner 9000?
No. It is a portable monobloc you can fit yourself, no professional needed. No permission needed.

Is a portable even the right type?

Compare portables against the other types on price, noise, efficiency and install.