ᐅ Differences Between Various Non-Woven Wallpapers, for Example from Erfurt

Hello,

I am currently researching non-woven wallpapers and feel a bit overwhelmed by the variety available.

I quickly came across an old Stiftung Öko Test from 2012, where Erfurt was the only brand to receive a good rating, as others contained PVC and plasticizers.
I also noticed that Erfurt products highlight being fiberglass-free as a feature.
I found some opinions and statements saying that the fiberglass fibers are already 8-10 micrometers (?) in size, so they cannot be inhaled by the lungs. Additionally, the fibers would be bound once the wallpapers are painted.
A painter specifically recommended fiberglass wallpapers, which seems a bit odd to me, and I am uncertain what to believe.

For now, I have focused my further research mainly on Erfurt, but for this discussion, that might not be a problem—I can consider other suppliers later.

It is obvious that the products differ visually, but does that explain the price differences, or do the individual types have other advantages compared to each other?
For all of them, Erfurt mentions that they are natural and durable...

Here are some Erfurt products I found with prices from a simple search:

• Erfurt non-woven woodchip wallpaper 0.87€/sqm (according to Erfurt: properties like non-woven wallpaper, appearance like woodchip wallpaper)
• Erfurt Non-woven fiber 707 Pro 2.24€/sqm (looks like classic wallpaper used in hospitals or doctors’ offices; I assume it is very robust)
• Erfurt Variovlies 1.14€/sqm (? simple smooth non-woven? What does “Vario” mean here?)
• Erfurt Variovlies Eco 0.90€/sqm (? simple smooth non-woven but environmentally friendlier?)
• Erfurt Non-woven fiber (sometimes called Max) 1.81€/sqm (like woodchip wallpaper but with different textures?)

On Erfurt’s website, I found a further classification:

• DIY/Homeowner
• The non-woven woodchip wallpaper is listed under woodchip wallpapers. I assume the backing is a non-woven wallpaper with wood fibers for the look (painted “muesli” texture), labeled with types like "Classico," "Romantico" – presumably names for regular consumers.
• Textured non-woven wallpapers (e.g., the Max)
• Smooth non-woven wallpapers (Variovlies)

• Professional
• Woodchip and non-woven woodchip wallpapers (here grouped by numbers, probably indicating the grain size)
• Textured non-woven (e.g., Non-woven fiber 707, where 707 stands for a pattern; there are also others like 706, 705…)
• Smooth non-woven (Variovlies, but different products than in the DIY category)

Basically, I assume all these products (and similarly those from other manufacturers with “non-woven” in the name) are what people mean when they generally talk about “non-woven wallpapers.”

As far as I understand, non-woven wallpapers are higher quality than paper wallpapers (e.g., woodchip), more tear-resistant, better at covering cracks, easier to install since the adhesive is applied to the wall, easier to remove, and more durable.

On another site, I read a recommendation not to buy very cheap non-woven wallpapers and to ensure they weigh at least 150g/sqm (about 150g/sqm) because cheaper products sometimes weigh only around 80g/sqm (about 80g/sqm).
Except for the Variovlies (150g/sqm), I have not been able to find weight information for the other products so far.

Since the manufacturer promotes everything as excellent and I am dealing with a private home, I would simply use the smooth non-woven "Variovlies" where I prefer it and put non-woven woodchip wallpaper on the walls where I like it.
Partly because of the price, partly because I like the look and it is sufficient for my needs, and also because I do not see any tangible feature differences that would make a difference for us (private home, not a doctor’s office).

What are your opinions on this topic? Where am I wrong, and where do you agree?
What are your own experiences?

Thank you.