SereneLife SLPAC8 Air Conditioner Review

Tested using Methodology v1.0
Reviewed Jun 06, 2025 at 09:27 am
SereneLife SLPAC8 Picture
5.1
Large Room
6.2
Bedroom/Small Room
4.9
Combined Efficiency
7.5
Oversizing Tolerance
4.4
Noise

The SereneLife SLPAC8 is a portable air conditioner designed for small spaces. It has a 4,000 BTU cooling output and an advertised coverage of 215 ft² (20 m²). It has a single hose design and three operating modes: cooling, dehumidifying, and a fan setting. It also has a remote control, but unlike more expensive A/C units, it isn't Wi-Fi enabled, so there's no smartphone app functionality or support for smart home integration.

Our Verdict

5.1 Large Room

The SereneLife SLPAC8 is a poor choice for cooling large rooms. Its cooling capacity is very low overall; simply put, it won't be able to reduce the temperature in a large space to a reasonable level within an acceptable time frame. Its single-hose design is also pretty inefficient from a power-consumption standpoint.

Pros
  • Maintains consistent temperature and humidity levels.

Cons
  • Poor overall maintenance and cooling efficiency.

  • Very low overall cooling capacity.

  • High operating noise.

  • Constant running places increased wear and tear on components.

6.2 Bedroom/Small Room

The SereneLife SLPAC8 is a mediocre option for use in small rooms, but nothing more. There's minimal difference in operating noise between its highest and lowest settings with the compressor turned off, which can keep you up if you were to leave it running overnight. On the upside, as a relatively compact caster-mounted portable unit, you can roll it around in your bedroom without too much effort. There's no smartphone connectivity, but it does come with a remote control that allows you to operate the unit without having to roll out of bed.

Pros
  • Compact dimensions.

Cons
  • Poor overall maintenance and cooling efficiency.

  • The non-inverter compressor will result in inconsistent temperature and humidity levels in appropriately-sized rooms.

  • High operating noise.

  • Constant running places increased wear and tear on components.

4.9 Combined Efficiency

The SereneLife SLPAC8's overall efficiency is poor. Like any single-hose design, it'll have to work harder than other portable A/C unit designs to offset the heat from warm air that it draws in while running, driving up power consumption in exchange for only limited overall cooling capacity.

Pros
Cons
  • Poor overall maintenance and cooling efficiency.

7.5 Oversizing Tolerance

Due to its low capacity, the SereneLife SLPAC8 is seldom at risk of being oversized for most spaces. Its compressor is forced to run almost continuously in larger spaces. This helps minimize humidity and maintain a stable temperature, with no drastic swings due to compressor cycling. However, forcing the unit to run continuously in areas that exceed its capacity places additional unnecessary wear and tear on its components. Its single-hose design is also highly inefficient, driving up its own power demands.

Pros
  • Maintains consistent temperature and humidity levels.

Cons
  • The non-inverter compressor will result in inconsistent temperature and humidity levels in appropriately-sized rooms.

  • Constant running places increased wear and tear on components.

4.4 Noise

The SereneLife SLPAC8 is a noisy A/C unit. While its operating noise can be partially masked by a TV playing nearby, its fan speed is rather loud, even at its lowest setting. This can make it a bit of a nuisance if you were to leave it running overnight while trying to get some rest.

Pros
Cons
  • High operating noise.

  • 5.1 Large Room
  • 6.2 Bedroom/Small Room

Performance Usages

  • 4.9 Combined Efficiency
  • 7.5 Oversizing Tolerance
  • 4.4 Noise

Changelog

  1. Updated Jun 06, 2025: Review published.

Differences Between Sizes And Variants

The SereneLife SLPAC8 is only available in a single color variant: 'White.' For those interested, here's the product label.

Let us know in the comments if you come across another variant of this air conditioner.

Compared To Other Air Conditioners

The SereneLife SLPAC8 is a simple, portable A/C unit. Its single-hose design already puts it at an inherent disadvantage in terms of cooling efficiency compared to a double-hose portable unit or a basic window A/C with similar capacity, such as the Toshiba RAC-WK0512CMRU, which has no effective way of exhausting compressor waste heat from the room it's cooling. If you truly need a portable unit and are dead-set on a cheaper single-hose model, the Black+Decker BPAC12HWT offers greater overall capacity and significantly lower operating noise.

Black+Decker BPACT12HWT

The Black+Decker BPACT12HWT is a better portable A/C unit than the SereneLife SLPAC8 for the most part. The Black+Decker offers significantly more cooling capacity in a roughly similarly-sized package, all the while producing less noise. The SereneLife's lower capacity can work to its advantage in oversized spaces, in the sense that its compressor being forced to work constantly will minimize swings in humidity and temperature. However, this also increases energy requirements and places more wear and tear on the unit.

De'Longhi Pinguino Compact PACEM360-6ALWH

The SereneLife SLPAC8 and De'Longhi Pinguino Compact PACEM360-6ALWH each have their own strengths. The SereneLife is a little more compact and is marginally more power efficient when it comes to cooling and maintaining a setpoint. However, it's still far from spectacular in this respect. Meanwhile, the De'Longhi runs noticeably quieter, especially at its lowest cooling setting.

Test Results

perceptual testing image
Design
7.5
Design
Size
Height 67 cm (26.4")
Width 37 cm (14.6")
Depth 38 cm (14.8")
Design
Body
Power Cord Length 1.9 m (6.2 ft)
Weight 18 kg (40 lbs)
Material
Plastic
Type
Single-Hose Portable A/C

This A/C unit comes bundled with an extending window bracket that can be locked at any length, rather than having a set of pre-drilled holes. This provides a lot of additional flexibility in terms of where you can set up the unit.

Performance
5.3
Performance
Capacity
Advertised Coverage
215 ft² (20 m²)
Advertised Capacity (DOE)
4,000 BTU/hr
Time To Cool From 28°C To 21°C
70 min (1.17 hrs)
Sensible Energy Exchanged
3,575 BTU (1,048 Wh)
Latent Energy Exchanged
316 BTU (93 Wh)
Tested Capacity
3,335 BTU/hr (978 W)

The SereneLife SLPAC8's cooling capacity is poor. This unit was unable to reach the desired 21 °C (69.8 °F) target from a 28 °C (82.4 °F) starting point without our maximum time allotment of 70 minutes. As a result, it'll take quite a while to cool the air even in smaller bedrooms, and it won't be able to reduce the temperature to your desired level in bigger spaces within a reasonable time frame.

5.2
Performance
Efficiency When Cooling
Electrical Energy Consumed
962 Wh (3,280 BTU)
Total Energy Exchanged
3,891 BTU (1,141 Wh)
Energy Efficiency Ratio
4.0

This unit's efficiency while cooling is poor. This is a single-hose model, which intakes indoor air while cooling: this generates negative pressure inside the room it's placed in, and allowing warm outside air to leak in. This forces the unit to work even harder to offset this heat. It consumes far more energy than a window-mounted unit with a comparable cooling capacity, like the Toshiba RAC-WK0512CMRU, which places the heat-generating elements of its design outside of the space you're attempting to cool.

4.7
Performance
Efficiency When Maintaining Temperature
Electrical Energy Consumed
781 Wh (2,663 BTU)
Energy Exchanged
1,720 BTU (504 Wh)
Energy Efficiency Ratio
2.2

The SereneLife SLPAC8's temperature maintenance efficiency is bad. Its single hose design draws in air from the room it's cooling, drawing in warm outside air. As a result, the unit has to work hard to maintain the desired temperature.

9.0
Performance
Temperature Stability
Temperature Delta
0.2 °C (0.4 °F)
8.2
Performance
Humidity Stability
Humidity Delta
1.4%pt.

This unit does a great job of maintaining humidity levels. As a low-capacity portable unit, its compressor needs to run constantly to cool even smaller spaces. This minimizes any swings in humidity levels, but also puts more wear and tear on its compressor.

4.4
Performance
Inside Noise
Compressor On @ Max Setting
63.8dBA
Compressor Off @ Max Fan Speed
63.4dBA
Compressor On @ Min. Setting
62.3dBA
Compressor Off @ Min. Fan Speed
61.8dBA

This A/C unit occasionally exhibits noise spikes that climb to a very noticeable 78 dBA, though these bursts last less than a second. This can be very disconcerting in smaller spaces.

Environmental Impact and Features
Environmental Impact and Features
Environmental Impact
Refrigerant
R32
Global Warming Potential (GWP)
675
Ozone Depletion Potential (ODP)
0
Environmental Impact and Features
Features
Compressor Technology
Non-Inverter
Thermostat Type
Digital
Dehumidification Mode
Yes
Heat Mode
No
Remote Control
Yes
Smart App
No