No technical difference with the DD550-0

I as points of comparison with this DD5550-3 Dirt Devil Bagless Dirt Devil Infinity DD5550-0 Rebel 52 HE Bagless Cyclonic Bag Multi-Blanc, the Dirt Devil DD 2221-3 Bagless Cyclonic Bag Rebel23 HF + Brush Parquet Gris, Dirt Devil bagless DD 2221-0, the Philips FC9722 / 09 Bagless vacuum POWERPRO EXPERT Class Technology PowerCyclone 6 and the silent force Rowenta (with bag).

I give priority to the sound level and quality of suction in the choice of my vacuum cleaner. Therefore decibel level, it's a catastrophe. This cleaner and super noisy mega !!!
If it is super noisy, it is super effective against aspiration level, even better than vacuum cleaners appointed by comparison.
This efficiency does not compensate unfortunately for me the sound level. Having a head like a helmet every time I vacuumed, no thank you.

Facing DD2221-3 and DD2221-0 of the same brand, it does not arise from winning: its capacity is much lower for a higher taken: 1.8L against 2.7.
Its annual energy consumption is more pronounced than his two cousins ​​(32.2 against 28.8 kwh).
It improves through the dust emission class who spends at B and C because it loses 5 dB (85 dB 80 story) the noise level but this is not enough for me facing a silent force of rowenta and 69dB.

Design is really super nice: modern and cool colors.
It is not too heavy, compact and runs well.

The second major drawback comes from the accessories the quality and research are not "top quality".
The brush is basic and the handle, even if it is telescopic, is difficult to use. The difference with the 2221-0 model is the addition of the parquet brush that exists on the DD2221-3.

Thus in the 40th near Philips (without bag) or with the Rowenta 30th (with bag) according to retail sites and the age of the model, I prefer without doubt the Rowenta Silent Force because of its decibel level . I'm not advertising for Rowenta but doing the dB level is low by keeping an honorable aspiration quality, the more I'm glad.

If it is then necessary to make a choice at the Dirt Devil brand, I will choose probably the Dirt Devil Infinity DD5550-0 Rebel 52 HE Bagless Cyclonic Bag Multi-Blanc which has exactly the same features as this one for the price (it is cheaper on amazon for the moment) and to improve the noise level and the quality of its aspiration. DD550-3 This model brings little added value to the other two models and with no DD550-0 model. Just the color and it is more expensive.

It's a shame for comparison with the "big" brands because the design and power of the Dirt Devil are downright top but the sound level and quality accessories lacking.