Without getting into a really big thing, we can state that the standards of cleanliness as taught by His Divine Grace A.C. Bhaktivedanta Swami Prabhupad are beyond compare. His personal standard of hygiene were exemplary. As a Vaishnava sannyasi he bathed three times daily, washed hands meticulously after eating or even touching the mouth.

Brahminical training in the gurukula and at home, and in and around temples, where the highest standard of cleanliness is upheld especially by the brahminiical proisthood who interact with the Deity, hence this is even how the term "untouchables" came about from seeing those persons who by personal cleanliness were and are untouchable by priests who have in many ways undergone higher standards of cleanliness.
    For example: Standards of cleanliness as presented in the Nitya Kriya (Daily activities) of one who is a brahmana. (coming soon)
 

Here's a nice article that depicts clearly our standards and mood, and acknowledgement of those who can appreciate:
http://www.alligator.org/edit/issues/00-fall/001101/b01krishna1.htm

Contrary to all standards of cleanliness the west for all its glitter doesn't uphold stardards of either personal hygiene, practical hygiene, social hygene, or cultural or spiritual hygene. We can in brief look at a few instances where these are clearly shown:

Food intake:
The Science of Eating and Good Health:
http://www.webcom.com/~ara/col/books/VEG/hkvc2.html

Preparation:
Alert over hygiene in food industry
http://news.bbc.co.uk/1/hi/health/2380165.stm

A Krishna conscious perspective on food preparation - preparing food to offer with love to God:
http://www.krishna.com/newsite/printarticles/Offer_Food.html

Further practical proof of devotional standards of cleanliness:
http://www.cnjg.net/pluralism/hare%20krisna%20profile.htm

Cooking for Krishna:
http://www.pratyatosa.com/CookingForKrishna.htm

Content:
What to offer to God
http://www.vaishnava.com/cuisine.htm

Vegetarianism and Beyond - with myriads of useful pages connected:
http://turn.to/Vegetarianism

Public places:
toilet seats, toilet carpets and toilet door and window frames - the truth revealed (coming soon)

Looking for a simple place to sit: Community-based Toilet Design, Construction and Upkeep in India
http://www.asiasource.org/asip/toilettalk.cfm

Toilets on Railway coaches in India:
http://www.irsuggestions.org/coaches.htm

Social:
sexual disease - Sexually Transmitted Disease - STD
See seX-files  (coming soon)

A woman's perspective:
http://www.uppitywomen.net/hkrsna.html
 

Krishna consciousness at home:
http://www.iskconbaroda.org/krishnacons2.htm
 

HealthCommunityVegetarianism