An Event of Chemical War. Thoughts?

The original reason for shaving came out of the chemical warfare in WW1. The masks they had then were compromised by the beards that some soldiers started with at the beginning of the war.
Commanders in the field ordered new soldiers to be close-shaved head and face prior to transport to the front. It was easier to maintain the 'look' at they front than to shear the soldiers after they arrived. Soldiers were issued a marginally effective protective masks. They also were told to dress in layers of oil-permeated cloth, with its resulting skin rashes in a non-sterile environment.
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The point is these precautions were taken afterwards. At the Battle of Ypres in Belgium, German military launched the first large-scale use of chemical weapons in war. Nearly 170 metric tons of chlorine gas in 5,730 cylinders are buried along a four-mile stretch of the front. In the end more than 1,100 people are killed by the attack and 7,000 are injured.
In the case of Ypres, there were 9000+ causalities, still the chemical agents in the weapons were considered largely ineffective.
The Germans then worked to on new methods of delivering poison gas. Since there were ways to develop defenses against gas attacks, the killing capacity of gas was 'limited' during WWI against prepared soldiers to about ninety thousand fatalities from a total of 1.3 million casualties.
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That holds true today for ground soldiers but realistically a fully sealed body suit is the only answer to the complex war environment that the services will face in a modern hazmat battle environment.
Maybe the services should develop an enclosed environmental suit that can double as the standard battledress.
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My list of needs in chemical protection for the future.
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1.There is a need for either a separate air supply backpack OR a battery powered air filter system.
2. Sealable arms, legs and waist closure that are rigged and durable.
3. Gloves that are still hazmat effective but allow you to use load, fire and maintain most weapons.
4. Weapons modifications to make them more hazmat suit friendly.
5. Boots that are truly Hazmat-durable but you can use without tripping over you feet.
6. A solid piece coverall for the day-to-day field uniforms would nice.
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With the advances today in the use of kinetic body power I think it could be done. Use technology of the body's own movement to charge the fabric interlaced battery systems for micro-electronics.
LEDs were once considered 'impossible'.
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This could either be a hush-rush job or be developed over a 4-5 year process.
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The old Soviet Army used to do live chemical attack exercises that had projected percentages of casualties. Those were exercises where everyone had time to prepare and be fully dressed for the hazmat environment at it start.
Their projected casualties were borne out.
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I ask you to choose anywhere in the world then answer this question - How would US Military personnel fare in a surprise attack?
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1SG John Faircloth - PO1 H Gene Lawrence - PO1 Richard Nyberg - 1SG Steven Imerman - PO3 Lynn Spalding - SGT David A. 'Cowboy' Groth - SSG Donald H "Don" Bates - PO1 William "Chip" Nagel - Lt Col John (Jack) Christensen - Lt Col Charlie Brown - SGT (Join to see) - SSgt Joseph Baptist - MAJ Byron Oyler - SSgt Joseph Baptist - SSgt Terry P. - PO1 Richard Nyberg - 1SG Steven Imerman - SSG Donald H "Don" Bates - Sgt Albert Castro - PO3 Bob McCord -