How to clean a Dell laptop screen?

So if the "other 30%" of the 70% isopropyl alcohol is water, then by applying your same logic the "other 70%" of the 30% water is water. Does that mean you're now mixing equal parts of 70% isopropyl alcohol and "100%" water, or any other proportions you might like to try? Of course not. It means what it says - a mixture which contains 70% isopropyl alcohol, with the other 30% being water.

Would it be easier to understand if it was written "take 70 parts of

I think they're more concerned that anything other than microfibre cloth might contain minute pieces of grit or other hard material which might scratch the screen. You might not feel any minute pieces in the sterilising pad when it's rubbed on your skin.

It means that the screen cleaner is 70% isopropyl alcohol and 30% water. More commonly, it's called "rubbing alcohol" or "medical alcohol" and is intended for topical (applied to the skin) use. For cleaning screens, it's awful. With a laptop, all it does on mine is smear the surface screen grease around and leave streaks when it evaporates. Paper towels make the mess even worse.

What works (for me) is a clean and dry microfiber cloth and some light pressure. The microfiber cloth will absorb the grease and pickup the dust without any solvents. The problem is keeping the cloth clean. A new cloth works well, but it doesn't take much use to make a mess. To keep the towel from collecting dust, I keep them in plastic Zip-Loc bags. Pushing harder when cleaning *WILL* scratch the plastic laptop screen. The accumulated dirt and dust in the cloth turn it into sandpaper.

"How to Hand Wash Microfiber Towels"

For medicinal purposes, the approximately 30% water concentration is needed to kill some types of viruses, bacteria and fungi.

I think your answer makes the most sense, but I want you to know that since I posted, I found that SCAI (so-called AI) doesn't see it that way. So I'm not the only one who is confused. I searched on which is bette to clean led screen, tap water o 70% IPA **** I got: AI

Yes, but there is no 100% IPA. The most they can make is 99.something% and that requires distillation. So when it's 70%, I don't see it as a mixture, but as one substance. The water and alochol are attached in some way. Ah, it says the water and alcohol are hydrogen-bonded between the hydroxyl (\(-OH\)) group of the alcohol and water molecules. so that's why when they tell you to mix, to me it sounds like they're talking about adding even more water.

You're right. The prep pads are not meant to be especially smooth.

Very interesting. Much better than wikipedia/ipa's explanation which was very short.

Good to know.

s>screen. The accumulated dirt and dust in the cloth turn it into

I watched it. So far I only have one of such towel, but he reminded me that my sink is usually dirtier than the towel would be, even though I wash new clothes in that sink, so they won't bleed on to the rest of my clothes***

Very good video short follows.

Q: How do you get a pink rabbit?

A: You put white rabbit in the wash with some red socks.

I think that would do it, but I'd like to try it first before fully endorsing the method.

Back to my OP, I changed my search terms to include Dell, how to clean a dell laptop screen

And I found that Dell had two pages with different answers:

So I looked up some screen cleaning kits and despite how good Amazon's pictures are, none said what the ingredients were, because then you'd just use the ingredients for far less money.

Despite Dell itself saying to use 70% IPA, other stories scared me, and tap water definitely has minerals. Of course I only clean my screen once a year or twice a year, not every day, so tap water won't leave noticeable deposits. And even alcohol probably wouldn't do noticeable damage even to a screen it could damage.

But I finally rmemembered that I had part of a gallon of steam distilled water in the basement. Problem solved. Thanks for your help on the mathematical mixture question.

Sorry. I assumed that everyone has microfiber towels and knows how to use them. When I was still fixing computers, I bought them in bulk for cleaning displays:

Hint: The front surface of today's LCD screens are glass. Earlier screens and the very cheapest LCD screens, were plastic.

What I do for cleaning LCD displays: "How to clean a TV screen the right way"

Drivel: No, I'm not a clean freak.

Woah...that's a world -class straight line! :-)

LOL

Thanks a lot for the links.

I have a friend who drinks distilled water, in place of plain water! When he came to visit, I'd buy a gallon of distilled water. After his last visit, the plastic bottle sat on the basement floor for weeks or months, without any problem. I took it to the kitchen and set it on the formica counter, and in one night it sprang a leak and ruined the particle board under the formica (this was 1979 stuff with s seam between the top and front.) So why did it leak after leaving the cement basement floor and sitting on the formica???

He moved farther away and doesn't come to visit anymore, so I thought I had no distilled water and didnt' want to buy a gallon for one tablespoon's worth, but I found a gallon in the basement, not on the floor, 2/3rds of it used. ???? Don't know why I have it. The car battery couldn't use over 2 quarts. I no longer iron clothes and need it for the steam iron.

So now the screen, which almost never touch, is clean and I even cleaned the phone, though that will get dirt again soon.

I believe you.

In the not so distant past, it was customary for automobile repair shops to wash the vehicle before returning it to the customer. The practice largely ended when began experiencing extended droughts.

What type of plastic was the water bottle made from? I've had drinking bottles harden and crumble without external influences. This bottle did NOT get much UV exposure, yet disintegrated when I touched it after about 8 years of indoor storage:

When I tried drinking de-mineralized (or de-ionized) water, it tasted ummm tasteless. There was no taste at all. It was the liquid equivalent of eating paper. "Does 100% Pure Water Have a Taste? Drinking Type II Deionized Water Experiment"

Drivel: I used to obtain my tap water from two large redwood water tanks. The water came from a local spring. I decided to look inside the tank via some covered access holes in the top of the tanks. I found several dead squirrels floating in one. The local tap water had the reputation for being the best tasting water in the area.

We had a big fire in the area in Aug 2020. The fire melted many of the plastic water pipes that were just sitting on the dirt. The chemical analysis of the water what horrid. The prime contaminants were benzene and other VOC's, which forms when plastic melts. See Pg

Primary heating in my house is from a wood burning stove:

Something must be wrong. Nobody believes me.

We had a dead skunk in our well. The taste intensified gradually so we didn't notice it. Our uncle took a taste and spewed the water out and almost vomited.

That's hilarious. And I can understand it too. Where I lived for 2 years, a cat got into the basement and died somewhere among the boxes and junk. The smell was terrible, but it took a while to notice and then to find him. I would think something equivalent to that smell would have been in your water (and cats don't even have a built-in bag of stinkum' like skunks do).

It's been 10 years, but it was the cloudy, white plastic used for gallong bottles in the eastern USA. Easy to bend but lasts normally until you've drunk a gallon of milk (or evne used a gallon of distilled water. What I have in the basement now is 5 or 10 years old but it doesn't sit on the cement floor, which must have had something major to do with the problem.)

It looks like you and I have the same housekeeper.

That's what everyone says but I wasn't going to argue with him. He has a couple strange habits but is basically normal.

Did these redwood water tanks provide water just to you, or to how many homes?

Unrelated but I left my spaghetti spoon/fork on the stove while I used the oven to heat my kitchen. (I can't turn the heat up higher becuase that part of my living room is inaccessible due to junk.)

Good.

I boil water too. this past Jan/feb was the coldest I remember nt he 40 years I've been in Baltimore, and my house is leakier than ever. Boiling water really works and is more efficient and thus cheaper than heating oil in making one feel comfortable (not in actual temperature) , about a gallon most days.

I do get a layer of deposits in the old pot I use, but I've never noticed anything else. No dust. I don't drink tea or coffee and if I did I"d use a different pot!

Dawn is definitely different form most dish soaps. When I have cuts it stings. Never heard of Dawn Platinum.

I'm soon, in a day or two, going to start another thread here about refrigerator repair. It would have gone in alt.home.repair but that is inhabited by barbarians now. I hope you and others will read it and help me out, becaus I can't figure it out. I'm sure he fridge has electric parts, maybe even electronic. And people who fix things like to fix things in general, is that not right?

I'll check with my therapist.

I would guess about 45 homes from the two original tanks. The two tanks in question leaked to the point where they couldn't easily be repaired. So, the local water district installed a nice modern steel tank further up the hill. There are also two additional tanks a little further down the hill. The two are also too old to repair. Leakage has undermined the foundation and the tanks are now leaning slightly downhill. Fortunately, the water district has plans in place to replace the two rotting tanks with a 120,000 gallon bolt together steel tank near my house (mostly for fire protection). However, since my house is slightly above the new, I will continue to get my water from the existing steel tank. In theory, the project should be done in about a year:

According to the AI wizard:

Key Differences Summarized Power: Platinum packs a stronger punch against grease. Ingredients: Platinum has additional surfactants and sometimes ingredients like sodium hydroxide for tough jobs, potentially affecting things like cast iron seasoning. Value: Regular Dawn Ultra offers great value for daily use, while Platinum is for when you need extra oomph.

If I had to think about why I answer questions on Usenet, I probably would give up and do something else.

Ask an AI first. It's much cheaper and possibly better than a therapist. AI also works for fixing refrigerators: "Fridge Troubleshooting Guide"

Surprised as I am, chatgpt had a seemingly good suggestion about the front of the fridge comparment bulging. It suggested hat if there had been dripping from the freezer, and indeed there was, it could have reached the insulation and caused it to swell. It's going to take e few days to get down on my knees and see if there actually is insulation there. I don't think I saw any when I looked months ago, but I wasn't looking for it either. If I don't see any, I'll ask the chatnik a follow-up question. But if I don't get this done in 7 days, I'm going away for 3 months. I'll plan to finish this up when I get back.

It also said if the fridge was over 10 or 12 years old it probably wasn't worth fixing. I hadn't told it that mine is 46 years old and doing well. I recently glued back the two railings, one from the fridge door and one from the freezer door, that I had broken off. They look very good now. And even with the bulge only a little cold air gets out. It also suggested adding another layer to the door gasket. As hard as that would be, It's probably more likely to work than pounding on a 2x4 to bend the fridge back into shape. OTOH, it only has to go back probably less than 1/4". It said the insulation would not compress, but why not cut a little bit out, if that is reall the problem. It didn't address that.