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Rainbow vs Sirena: Which is The Best Choice? (2024)

If you’re confused between Sirena vs rainbow vacuum cleaners, you’ve come to the right place. 

Both the Sirena and Rainbow vacuums use water filtration systems. Unlike traditional bagged vacuums, they are bagless and force dust particles to enter the water reservoir. Once wet, the dust and allergens cannot escape further. Additionally, the backup HEPA filter traps the remaining contaminants. 

But, in Sirena vs rainbow vacuum, which is the best water vacuum cleaner? 

I’ve tested these vacuums for over a month on crucial parameters like suction power, noise level, and ease of use.

So without any further ado, let’s get started.

🏅Rainbow Vacuum Review: What’s So Special?

Rainbow Vacuum


  • Good suction power for carpets and hardwood floors.
  • Easy to repair if it breaks. Individual parts are easily available in the market.
  • Durable built. 
  • Superb portability and maneuverability with wheels and a long power cord.
  • Good for asthma patients. 
  • Sucks pet hair effectively. 
  • Quietest vacuum despite its brilliant suction. 


  • Expensive.
  • More pets and kids in the house mean the water has to be replaced multiple times. 
  • Messy to clean the water reservoir full of pet hair and dirt. 
  • Heavy to be transported upstairs.
  • The water tub leaks sometimes.

With a few limitations common for almost all water filtration vacuums, the Rainbow water vacuum is a top-notch vacuum that can last upto decades. 

🎖️Sirena Vacuum Reviews: Better Anti-Allergen Vacuum?

Sirena Vacuum


  • Traps dirt and dust effectively with its fantastic suction power.
  • You can vacuum carpets, furniture, hardwood, floors, and even cars.
  • Good at picking up wet spills.
  • Equipped with effective attachments like a curved wand to reach difficult areas for cleaning.
  • Affordable. 


  • Lacks durable build. The water basin is fragile.
  • Heavy to carry upstairs.
  • Replacing broken parts is expensive.

With Sirena vacuum cleaners, you get what you pay for. The initial cost of a vacuum is low, but the maintenance can be expensive. 

How We Test Vacuums At Clean Homies

💪Sirena vs Rainbow Vacuum: Key Differences 

Vacuum NameSuction Power Deep Cleaning StrengthEase Of Use And Maintenance Versatility Customer Support
Sirena S10NAVery GoodVery GoodVery GoodDecentVery good
Rainbow E2Very GoodDecentDecentVery GoodDecent

So for a fair Sirena Vs Rainbow round, let’s get into a detailed study of the specs and functions of the two vacuums. 

🌈Rainbow Vacuum Cleaner Full Review

rainbow e2
Adarsh P/ Clean Homies

Rainbow vacuum cleaners are factory certified. You get authenticated devices from experienced technicians. It is one of the reasons for the long-lasting build quality of the Rainbow model. Its vibrating head, the same as Sirena, is very beneficial. 

Rainbow water vacuums use HEPA filters to ensure efficient cleaning power. 99.9% of the dirt particles get trapped inside the water basin. The remaining dirt is run through a backup HEPA filter to release clean air into the house.


  • Dimensions: 15.5 x 11.8 x 15.8 in
  • Cord length: 25 ft
  • Hose Length: 8 ft
  • Suction Power: 70 CFM
  • Volts / Watts: 1150 Watts
  • Water lift: 80 in/ minute 
  • Noise Level: 68 dB
  • Filtration: True H13 class HEPA
  • Warranty: 10 years 


  • Floor and Wall Brush
  • Pet Grooming Tool
  • Wet pickup/Extractor Head 
  • Only one Hose: Wet/Dry
  • Crevice Tool
  • Inflator Tool
  • Upholstery Tool
  • Dusting Brush
  • Attachment Caddy
  • Stainless Steel Wands

Let’s read about the detailed specs of the Rainbow vacuums.

Suction Power

rainbow e2 accessories
Adarsh P/ Clean Homies

Rainbow vacuums’ suction power is simply brilliant! It does not lose suction over time. The vacuum captures all the dirt into the water basin, with no chance of further spread. 

HEPA vacuum cleaners, like Rainbow vacuum cleaners, dramatically improve the house’s air quality. In addition, you will notice less accumulation of dirt over time. 

Deep Cleaning Strength

The Rainbow model is the best choice for hard surfaces. It leaves no dust or dirt stuck in the corners. From pet hairs to wet spills, Rainbow vacuums trap everything. 

I’m saying this because ever since I started using this vacuum cleaner, I can get away with vacuuming my home twice a week, which is so less than cleaning it every alternate day. 

Ease of Use and Maintenance

  • The Rainbow vacuum cleaner is heavy (18 pounds, 8 ounces) but has wheels that easily roll the machine. The weight is natural for such a powerful motor. 
  • Rainbow vacuums come with a long power cord, making it easy to vacuum a big room. However, be careful as the power cord gets toiled under the machine’s wheels. So keep unwinding the power cord frequently. 
  • The Rainbow water vacuum has better durability than any modern water canister vacuum. Its parts hardly break, and even if they do, the replacement is easy. 
  • Since the Rainbow model has been around for quite a long time, individual parts are readily available in the market. 
  • Moreover, the water canister vacuum is bagless, so there’s no need to replace dust bags frequently: all that saves your time, labor, and maintenance cost. 


Due to great portability and maneuverability, you can use Rainbow vacuum cleaners all over the house and furniture. It does a pretty good job on rugs too. 


Remember to replace the water before it becomes too saturated. It would be sick to continue vacuuming with the water basin full of dirty curd! 🤮

Customer Support and Warranty 

The Rainbow model has a ten-year warranty. You can get a quick customer response by contacting their toll-free number. In addition, Rainbow facilitates a doorstep pick-up service.

Also Read: Tineco Vacuum Comparison

🧜‍♂️Sirena Vacuum Cleaner Full Review

sirena vacuum
Adarsh P/ Clean Homies

The Sirena vacuum cleaner is one of the best water-based and bagless vacuum cleaners. Equipped with HEPA filter and Water based filtration technology, they are best for deep cleaning. 

Sirena vacuum has an electric hose, a water hose, and a tube. You simply can’t resist its multipurpose electric setup! 


  • Dimensions: 20 x 20 x 12 in
  • Cord length: 21 ft
  • Electric hose Length: 6.25 ft
  • Suction power: 63.556 CFM
  • Volts / Watts: 1200 Watts
  • Water lift: 86.3 in/ minute
  • Noise Level: 70 DB
  • Filtration system: HEPA 12 Filter Cartridge
  • Warranty: 10 years


  • Floor Brush
  • Dusting Brush
  • Upholstery tool
  • Two hoses
  • Crevice Tool
  • Inflation Tool
  • Power Nuzzle 
  • Curved wand 
  • Turbo brush

Let’s read about the detailed specs of the Sirena vacuums.

Suction Power 

Sirena vacuum cleaner is excellent at sucking contaminants. Besides sucking solid dirt and pet hair, the water vacuums purify the air. 

The nozzles, accessories, and cleaning attachments are for multiple uses. Sirena Vacuum Cleaner is an excellent alternative for those looking for a quality vacuum cleaner without paying the Rainbow price.

Deep Cleaning Strength 

sirena vacuum
Adarsh P/ Clean Homies

I have no complaints about the cleaning power of the Sirena vacuum. The house gets cleaner with every use. Sirena vacuum comes with two hoses to pick up dry and wet messes.

Unlike other vacuums, it does not return dust mites into the air. Sirena HEPA vacuum cleaners can be a great budget-friendly option for those with dust allergies.

Ease of Use and Maintenance 

The water filtration vacuum cleaner is not lightweight. Instead, the Sirena vacuum is a heavy-duty vacuum cleaner. However, the body durability of the Sirena vacuum is nowhere close to that of the Rainbow model.

The fragile construction makes you very cautious while using it. So, maintenance-wise, I cannot appreciate it. Frequent damages to the machine can add up to the maintenance cost. 


sirena vacuum
Adarsh P/ Clean Homies

From hardwood floors to carpets and tiles, the Sirena vacuum cleaner can effectively clean almost every corner of your house. It can turn into a carpet shampooer as well! 

Additional Feature:

Besides vacuuming, the Sirena water vacuum is an air purifier to ensure you breathe clean air. The cleaning attachments and extension wands help reach the photo frames and furniture tops. 

Sirena vacuum comes with a larger water reservoir than Rainbow. However, the enormous size and the heavy weight of the water vacuum make it challenging to move. 

Customer Support and Warranty 

Sirena vacuum cleaner comes with a 10-year warranty and fast customer support, similar to e series Rainbow models, at a fraction of the cost. The latest Rainbow E2 black model is three times the cost of the Sirena vacuum. 

Sirena hosts a network of independently owned vacuum cleaner specialty stores like Ristenbatt Vacuum Cleaner Service in the US.

So in this ultimate Sirena vs Rainbow Vacuum comparison, the winner is: 

🏆Sirena vs Rainbow Vacuum Cleaner: Which Is Better? 

After going through a realistic analysis of Sirena vs Rainbow vacuum, here is my catch. 

Both water-based vacuum cleaners have an efficient cleaning ability. 

However, regarding durability, Rainbow vacuum cleaners can last for generations with proper maintenance and electrical safety. 

On the other hand, Sirena vacuum cleaners are much more affordable than the Rainbow vacuums, with almost equally good cleaning ability. 

So if you are low on budget, consider purchasing Sirena vacuum cleaners. If you can afford a Rainbow model (especially the Rainbow E2 black model), nothing like that!

Also Read: Can You Vacuum A Cowhide Rug? 

💡Rainbow vs Sirena Vacuum FAQs

How does Sirena compare to Rainbow?

Among the two Sirena vs Rainbow vacuum models, both are well-known water filtration vacuum cleaners that work as air purifiers too.

Rainbow offers quality with durability. 

However, Sirena Vacuum Cleaner is more budget-friendly than Rainbow Vacuum Cleaner. You will get a larger water basin in Sirena at a cheaper price. 

Is a water filtration vacuum worth it?

The unique water filtration system of water vacuums will remove dirt and force them into the water tank by air power. All the dirt trapped becomes wet and cannot escape further. 

On top, if the water vacuum cleaner has a HEPA filter, it’ll capture dirt and filter even tiny allergens from the air.

How long can you run a Sirena vacuum as an air purifier?

You can run Sirena Vacuum Cleaner for 4 hours daily to purify the air. Add a few drops of essential oils to the water reservoir to deodorize the air.

Are Rainbow vacuum cleaners guaranteed for life?

Machines are bound to get destroyed after a certain period. However, the Rainbow Vacuum cleaner offers a written warranty of four years and ten years of motor warranty. 

What is a hypoallergenic vacuum?

Hypoallergenic vacuum cleaner comprises HEPA neutralizer filtration system. HEPA filters trap 99.97% of the contaminants within the vacuum system. 

As a result, it reduces the number of potential allergens present in the environment. Cheap ordinary vacuums fail to trap such small contaminants.

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